Poker Glossary
266+ terms defined with examples
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A
A-Game
Your highest level of play, when focus and decision-making are at peak capacity. Most players operate at their A-game for a fraction of their total volume. Tracking when and why you drop below it is one of the highest-ROI activities in poker.
After reviewing your sessions you notice that your A-game win rate is 8bb/100 but your blended rate is 3bb/100. The gap is tilt and fatigue in the final two hours of each session.
Abstraction
A technique solvers use to make the poker game tree computationally manageable. Since the full NLHE game tree has over 10^160 states, solvers reduce complexity by grouping similar hands into buckets, limiting bet sizes to a few options, and collapsing similar board runouts.
Your solver allows b33, b75, and b150 on the flop. Adding b50 as a fourth option slows the solve from 10 minutes to 2 hours. The question is whether that extra sizing produces meaningfully different strategy.
Action
A player's turn to act, or a general term for betting activity at the table. A game with lots of raising and re-raising is described as having a lot of action.
The action is on you: you can check, bet, or fold.
Aggregated Report
A solver output that combines results across all possible flops (or turns or rivers) to show average strategy tendencies. Instead of looking at individual boards, an aggregated report shows how often a player should bet, at what sizing, and with what range across all possible runouts. This makes patterns visible that are impossible to see one board at a time.
The GTO Wizard aggregated flop report for BTN vs BB SRP shows that the button c-bets b33 at 55% frequency across all flops. On K-high flops specifically, it jumps to 75%. The aggregated view reveals the pattern.
Aggression Factor
A HUD statistic that measures the ratio of aggressive actions (bets + raises) to passive actions (calls). An AF of 2.0 means the player bets or raises twice as often as they call. It does not count folds. AF is useful for identifying player types but can be misleading with small sample sizes.
Villain shows an AF of 0.8 over 500 hands. They call far more than they bet or raise. When this player raises your river bet, weight your decision heavily toward folding.
Air
A hand with no made value and no draw: nothing but high-card equity at best. When a player's range contains significant air on the river, it means many of their combinations missed entirely and have zero showdown value.
You called down three streets with top pair. Villain shows 7-6 offsuit on a K-Q-3-8-2 board. Pure air. They were bluffing all three streets.
All-In
Betting all of your remaining chips on a single hand. Once all-in, you cannot be forced out of the pot but can only win up to the amount you wagered from each opponent.
You shove all-in for 1,200 chips with pocket aces preflop and get called by two players.
All-In EV
The expected value of your hand at the moment all chips went in, based on equity versus the opponent's revealed holding. Tracking databases calculate all-in EV to separate your actual results from luck. If your all-in EV is higher than your actual results, you are running below expectation.
Over 50K hands, your actual winnings are $2,100 but your all-in EV line shows $3,800. The $1,700 gap means you have been running bad at showdown after getting it in.
Alpha
The minimum frequency at which a bluff must succeed to break even, determined by the bet size relative to the pot. The formula is alpha = bet / (bet + pot). A pot-sized bet needs to work 50% of the time. A third-pot bet needs to work only 25% of the time. Alpha is the bluffer's breakeven threshold.
You bet $75 into a $100 pot. Alpha = 75 / (75 + 100) = 42.9%. If your opponent folds more than 42.9% of the time, your bluff prints money regardless of what you hold.
Ante
A forced bet every player at the table must post before each hand is dealt. Antes increase the starting pot size and encourage action, especially in tournament play.
With blinds at 100/200 and a 25 ante at a 9-handed table, the pot starts at 525 before any cards are dealt.
B
B33 (Third Pot)
Solver shorthand for a bet sized at 33% of the pot. Small sizings like b33 are common on dry flops where the preflop raiser has a range advantage and wants to bet at high frequency with a wide range. The small size risks little while still denying equity.
On a K-7-2 rainbow flop as the preflop raiser, the solver bets b33 with nearly 80% of its range. The sizing is small because your range advantage is so large that you do not need to bet big to accomplish your goals.
B50 (Half Pot)
Solver shorthand for a bet sized at 50% of the pot. A versatile middle sizing used across streets. At b50, your opponent needs 25% equity to call, and you need bluffs to work 33% of the time.
The solver mixes between b33 and b50 on this flop depending on your specific holding. Your nut hands prefer b50 to start building a pot, while your thin value and bluffs use b33.
B75 (Three-Quarter Pot)
Solver shorthand for a bet sized at 75% of the pot. A standard sizing for turns and rivers when you want to build the pot with value hands while maintaining a reasonable bluff-to-value ratio. At b75, alpha is 43% and your opponent must defend at least 57% of their range.
You barrel the turn b75 with top set on a board that just picked up a flush draw. The larger sizing charges draws the maximum while still getting called by two-pair and overpair hands.
Backdoor
A draw that requires hitting on both the turn and the river to complete. Also called a runner-runner draw. Backdoor draws have low probability but add a small amount of equity to a hand.
You hold A-7 of hearts on a flop of K-5-2 with one heart. The backdoor flush draw adds about 4% equity, which is enough to turn some folds into profitable floats.
Backer
A person or entity that provides the bankroll for a poker player in exchange for a share of profits. Backers take on the financial risk while players provide the skill. The relationship is formalized in a staking contract that specifies profit splits, makeup terms, and volume requirements.
Your backer puts up 100% of buy-ins for the WSOP online series. You play, they absorb losses, and you split profits 50/50 after makeup is cleared.
Bad Beat
Losing a hand despite being a significant statistical favorite. The term specifically refers to situations where the losing player made correct decisions but was outdrawn by unlikely cards.
You get all-in with pocket aces against pocket kings preflop and lose when a king hits the river. An 82% favorite before the flop, undone by two outs.
Bankroll
The total amount of money a player has set aside exclusively for poker. Proper bankroll management means having enough buy-ins to withstand normal variance without going broke.
With a $5,000 bankroll, you should play no higher than $0.25/$0.50 cash games, where a standard buy-in is $50 (100 buy-ins).
Barrel
A continuation bet on successive streets. A double barrel means betting the flop and turn; a triple barrel means betting flop, turn, and river. Barreling applies pressure on opponents who may be holding marginal hands.
You raised preflop with A-K, missed the flop, bet the flop and turn as a double barrel, and your opponent folded on the turn.
BB (Big Blind)
The larger of two forced bets posted before the deal. The big blind is posted by the player two seats left of the dealer button and sets the minimum bet size for the hand.
In a $1/$2 game, the big blind is $2 and is posted by the player two seats left of the button.
Bet
Placing chips into the pot as the first wagering action on a given street. A bet differs from a raise in that no one has put chips in yet on that betting round.
The flop checks to you and you bet $15 into a $20 pot with top pair.
Bet-Call
Betting with the intention of calling if raised. Bet-calling indicates you believe your hand is strong enough to bet for value but also strong enough to continue facing aggression. It is the opposite of bet-fold.
You bet the river with two pair on a board that completed a flush draw. Villain raises. Your hand is too strong to fold at this sizing so you bet-call, accepting that you lose to flushes but beat enough worse hands.
Bet-Fold
Betting with the intention of folding to a raise. Bet-folding is correct when your hand is strong enough to extract value from worse hands that call but not strong enough to continue against the range that raises.
You bet thin value on the river with top pair, second kicker. Villain raises 3x. Their raising range here is almost exclusively two pair or better. Bet-fold is the correct line.
Bicycle / Wheel
The lowest possible straight: A-2-3-4-5. In lowball games this is the best possible hand. In hold'em it is the weakest straight but still beats all non-straight hands.
You hold A-2 and the board runs out 3-4-5-K-J, giving you the wheel: a vulnerable straight but still a strong hand.
Big Blind Ante
A tournament format where the big blind posts the entire table's ante instead of every player posting individually. This speeds up play and simplifies the mechanics. The big blind ante is used in most major live and online tournament series.
At 200/400 with a 400 big blind ante, the big blind posts 800 total (400 blind + 400 ante). The pot starts at 1,200 before any action.
Big Slick
A nickname for the starting hand Ace-King, one of the strongest preflop holdings. Big Slick plays well in large pots preflop but is still a drawing hand that needs to connect with the board.
You look down at Big Slick (A-K suited) in the cutoff and three-bet to $25 over an early-position open of $8.
Blind
A mandatory bet posted by one or two players before cards are dealt. Blinds rotate around the table each hand and exist to create a starting pot worth fighting for.
In a $5/$10 game, the small blind posts $5 and the big blind posts $10 before any cards are dealt.
Blind Defense
Calling or raising from the big blind (or small blind) against a preflop raise rather than folding. Proper blind defense is dictated by pot odds: the big blind already has money invested and often gets a favorable price to continue. Modern strategy defends the big blind very wide.
Facing a 2.5x open from the button, the big blind is getting 3.5:1 and should defend with roughly 55-60% of hands according to most solvers.
Block Bet
A small bet made out of position, typically on the river, designed to set a cheap price for showdown rather than face a larger bet from the opponent. Block bets are used with medium-strength hands to control pot size.
You hold second pair on the river out of position. Rather than check and face a potential $80 bet, you block bet $20 into the $100 pot. If villain raises, you fold. If they call, you saw a cheap showdown.
Blocker
A card in your hand that reduces the probability of an opponent holding a specific combination. Blockers are used in advanced strategy to determine bluffing and calling frequencies.
You hold A of spades and 4 of diamonds on K-Q-9-7-2 with three spades. You have zero made hand, but the A of spades removes 12 nut flush combos from villain's range. Solver says this is one of the highest-frequency bluff jams in this spot.
Bluff
A bet or raise made with a weak hand, intended to make opponents fold better hands. Successful bluffs win pots without going to showdown.
You bet $75 into a $100 pot on the river with ace-high, representing the flush, and your opponent folds top pair.
Board
The community cards dealt face-up in the center of the table. In hold'em, the board consists of up to five cards (flop, turn, river) shared by all players.
The board reads K-J-7-4-2 with no flush possible: a dry, disconnected runout.
Board Texture
The overall character of the community cards and how they interact with likely player holdings. Board texture is described as wet (many draws possible), dry (few draws), or somewhere in between.
J-T-9 two-tone is one of the wettest possible flop textures. Straights are already made, flush draws and straight draws are everywhere, and the preflop caller's range connects harder than the raiser's. Betting strategy shifts dramatically compared to K-7-2 rainbow.
Boat (Full House)
A full house: a hand containing three of a kind plus a pair. The rank of the three of a kind determines the strength of the full house.
You hold K-K on a board of K-7-7-3-9, giving you kings full of sevens: a very strong boat.
Bomb Pot
A cash game hand where every player at the table posts an agreed-upon amount preflop, there is no preflop betting round, and the flop is dealt immediately. Bomb pots create large multi-way pots with completely random ranges, heavily favoring nut hands.
Everyone posts $10 in a $1/$2 game. The flop is dealt to 8 players with $80 in the pot. Set mining and nut chasing are the only strategies that matter here.
Bounty
A cash prize awarded for eliminating a specific player in a tournament. In bounty and progressive knockout formats, part of each buy-in goes to a bounty placed on each player's head.
You eliminate a player in a $100 PKO and collect their $35 bounty, plus half goes on your own head.
Broadway
An ace-high straight (T-J-Q-K-A), or any of the five cards that make it (ten through ace). Broadway cards are considered strong starting hand components because of their high-card value.
You hold A-Q on a board of K-J-T-4-2, completing a broadway straight.
Bubble
The point in a tournament where one more elimination separates remaining players from the money. Bubble play involves significant ICM pressure that changes optimal strategy.
With 46 players left and 45 getting paid, you are on the bubble. Short stacks tighten up dramatically to try to squeak into the money.
Bubble Factor
A multiplier that quantifies how much more costly it is to lose chips than it is beneficial to gain them in a tournament, based on ICM. A bubble factor of 2.0 means losing a chip is twice as damaging to your tournament equity as winning one is helpful. On the exact bubble, bubble factors can exceed 5.0 for short stacks.
Three players left, payouts are $5K/$3K/$2K. You have 20BB and the chip leader covers both. Your bubble factor against the other short stack is 3.2: you need far more than 50% equity to call their shove profitably.
Burn Card
A card discarded face-down from the top of the deck before dealing the flop, turn, and river. Burning cards is a security measure to prevent players from gaining information if the top card was accidentally exposed.
The dealer burns one card then deals three face-up for the flop. Three burn cards total per hand: one before the flop, one before the turn, one before the river.
Button
The dealer position, marked by a circular disc. The button is the most profitable seat at the table because it acts last on every post-flop street, providing maximum information.
You are on the button with 7-6 suited and call a $6 raise, knowing you will have position for the rest of the hand.
Buy-In
The amount of money required to enter a cash game or tournament. In tournaments, the buy-in is fixed. In cash games, there is typically a minimum and maximum buy-in.
A $200 tournament has a $180 buy-in that goes to the prize pool and a $20 fee to the house.
C
Call
Matching the current bet or raise amount to stay in the hand. Calling is a passive action; unlike raising, it does not put additional pressure on opponents.
Your opponent bets $30 and you call with a flush draw, needing to hit one of nine outs.
Calling Station
A player who calls too often and rarely raises or folds. Calling stations are difficult to bluff because they refuse to fold marginal hands, but they are highly profitable to value bet against because they pay off with weak holdings.
The player in seat 4 has called three streets on every hand for the last hour. Stop bluffing them entirely and value bet thinner than normal; they will pay you off with bottom pair.
Cap
A limit on the number of raises allowed in a single betting round (in limit games), or a maximum buy-in or bet size in certain formats. In some online games, cap formats limit the maximum effective stack.
In a cap no-limit game with a 20BB cap, the maximum you can have in play is 20 big blinds, leading to frequent all-in preflop situations.
Capped Range
A range that is unlikely to contain the strongest possible hands because of prior actions. When a player's range is capped, opponents can apply more pressure because the threat of the nuts is removed or diminished. A typical capped range occurs when a player flats preflop instead of three-betting.
Villain flatted your open from the cutoff. On an A-K-Q flop, their range is capped: they would have three-bet AK, AA, KK, and QQ preflop. You can overbet this texture because they almost never have the nuts.
Cash Game
A poker format where chips represent real money and players can buy in or cash out at any time. Unlike tournaments, blinds stay the same and there is no elimination.
You sit down at a $1/$2 no-limit cash game with $200 and can leave whenever you want, converting your chips back to cash.
CFP (Coaching for Profits)
A staking arrangement where the backer provides both the bankroll and coaching in exchange for a larger share of profits than a standard staking deal. CFP programs are common in mid-stakes MTTs where a strong coach develops a player's game while funding their play.
You join a CFP stable where the coach takes 60/40 instead of the standard 50/50 split, but in return you get weekly 1-on-1 hand review sessions and a structured study plan.
Check
Passing the action to the next player without betting, only available when no bet has been made on the current street. Checking keeps you in the hand without adding chips to the pot.
You flop top pair on a dry board in position and check back to disguise the strength of your hand.
Check-Back
Checking when in position after your opponent checks to you. A deliberate check-back is a strategic decision to control pot size, protect your checking range, or take a free card with a draw.
Villain checks the flop. You have ace-high with a backdoor flush draw. Rather than c-bet into a wet board where you get check-raised too often, you check back and take a free turn card.
Check-Raise
Checking with the intention of raising after an opponent bets. The check-raise is a powerful move that builds the pot and represents strength, though it can also be used as a bluff.
You check the flop with a set of nines, your opponent bets $15, and you raise to $45.
Chip EV
The expected value of a decision measured in chips rather than real money. In cash games chip EV equals dollar EV, but in tournaments chip EV and dollar EV diverge due to ICM: winning chips is worth less than losing the same number of chips.
Calling an all-in is +500 chip EV but might be -$12 in real dollar EV near the bubble of a $100 tournament.
Chop
Splitting a pot between two or more players. A chop occurs when players have identical hand strength at showdown, when remaining tournament players negotiate a deal to split the prize pool, or when the blinds agree to take their money back without playing a hand.
You and your opponent both hold A-K on an A-7-4-3-2 board with no flush possible. The pot is chopped, split 50/50.
Cold Call
Calling a raise (or re-raise) when you have not yet voluntarily put any chips in the pot on that round. Cold calling a three-bet, for example, means calling without having been the original raiser.
An early-position player raises to $10, the cutoff three-bets to $30, and you cold call on the button with pocket jacks.
Combinatorics
The math of counting hand combinations (combos). There are 1,326 total starting hands in hold'em, but grouping by type: 6 combos of each pocket pair, 16 combos of each unpaired hand (4 suited + 12 offsuit). Combinatorics is essential for range analysis because it tells you how likely an opponent is to hold a specific hand.
Villain's value range on the river is sets of aces and kings. AA has 3 combos (one ace is on the board) and KK has 3 combos. That is only 6 value combos. If villain bluffs with more than 6 combos here, they are overbluffing and you should call.
Combo Draw
A hand that has multiple draws simultaneously, such as a flush draw combined with a straight draw. Combo draws have very high equity, often 50% or more on the flop, making them powerful semi-bluff candidates.
You hold 8-7 of hearts on a 6-5-K board with two hearts. You have an open-ended straight draw (8 outs) plus a flush draw (9 outs) minus overlaps. Roughly 54% equity against top pair. You are actually the favorite.
Community Cards
The shared cards dealt face-up in the center of the table that all players use to make their best five-card hand. In hold'em there are five community cards dealt across three streets.
The five community cards are 9-7-2-K-A, and you combine them with your hole cards to make the best possible five-card hand.
Condensed Range
A range that contains mostly medium-strength hands (pairs, weak top pairs, second pairs) and very few nuts or air. A condensed range is the opposite of a polarized range. Players typically have condensed ranges after flatting a bet rather than raising.
You bet the flop and villain calls. On the turn, their range is condensed: they raised their strong hands and folded their junk on the flop. You can now overbet with your polarized range because they hold almost nothing that can comfortably call a large sizing.
Confidence Interval
A statistical range that expresses the uncertainty around your true win rate based on your sample size. A 95% confidence interval means you can be 95% confident your true win rate falls within that range. Small samples produce wide intervals: a 10K hand sample tells you almost nothing about your true ability.
After 100K hands your win rate is 4bb/100 with a 95% confidence interval of 1.2 to 6.8 bb/100. You are almost certainly a winner, but you cannot yet distinguish yourself from a 1bb/100 marginal grinder.
Continuation Bet (C-Bet)
A bet made on the flop by the preflop aggressor, continuing the story of strength regardless of whether the flop helped. C-bets are a fundamental part of modern poker strategy.
You raised preflop with A-Q, the flop comes 8-5-3, and you make a continuation bet of 33% pot to maintain initiative.
Cooler
A situation where two players both have very strong hands and a large pot is unavoidable. Unlike a bad beat, a cooler implies neither player made a mistake: the hand played itself.
You hold K-K and your opponent holds A-A. No amount of skill gets away from this one preflop at 100bb. That is a cooler.
Counterfeit
When a community card duplicates one of your pair cards, effectively killing your hand. Counterfeiting most commonly happens to two-pair and low-end straight hands when the board pairs or extends.
You hold 6-5 on a board of 6-5-K-K. You had two pair on the flop, but the second king counterfeited your hand. Now anyone with a king or a pocket pair above fives beats you.
Cutoff
The seat directly to the right of the button, the second-best position at the table. The cutoff can open a wide range because only the button, small blind, and big blind act after.
You open-raise to $6 from the cutoff with K-J suited, planning to play in position against the blinds.
D
Database (Tracking Software)
Software that imports and analyzes your hand histories, providing statistics on your play and your opponents' tendencies. PokerTracker and Hold'em Manager are the two dominant products. A database is essential for serious online players to identify leaks, track results, and study population tendencies.
You filter your database for all hands where you three-bet from the small blind and got called. The report shows you are losing 15bb/100 in these spots, a leak worth investigating.
Dead Money
Chips in the pot contributed by players who have already folded, or money in a tournament prize pool from eliminated players. Dead money makes stealing the pot more profitable.
Two limpers fold to your raise, leaving $7 of dead money in the pot; your steal attempt only needs to work against the blinds.
Dealer
The person responsible for shuffling and dealing cards, managing the pot, and enforcing rules. In casino and online poker, a professional dealer handles the cards while the button indicates the theoretical dealer position for determining blinds and action order.
The dealer shuffles, burns a card, and deals three community cards face-up for the flop.
Decision Node
A point in the game tree where a player must choose an action (bet, check, call, raise, or fold). Solvers calculate the optimal frequency for each action at every decision node. Understanding which nodes matter most in a hand is central to efficient studying.
The solver outputs a strategy for the big blind facing a c-bet on a K-7-2 rainbow flop. This decision node shows check-call 45%, check-raise 12%, check-fold 43%. Each of those percentages represents the frequency across your entire range.
Deep Stack
Having a stack significantly larger than the standard 100 big blinds, typically 150BB or more. Deep-stack play involves more post-flop decision-making because implied odds increase with stack depth.
You are 250BB deep in a $2/$5 game with $1,250. Set mining and suited connector hands go up in value at this depth.
Delayed C-Bet
Checking the flop as the preflop aggressor and then betting the turn. A delayed c-bet is used on flops where the caller's range connects well and an immediate c-bet would face too many check-raises, or when the turn card improves your range more than your opponent's.
You raise preflop with A-Q, the flop comes 8-7-6 two-tone and you check back. The turn is a king, shifting the range advantage to you. You fire a delayed c-bet and take it down.
Depolarized Range
A betting range that contains a mix of strong, medium, and some weak hands rather than just the extremes. Depolarized ranges are used with smaller bet sizes where you want to bet at high frequency. Also called a merged range.
On a K-7-2 rainbow flop, the solver bets b33 with a depolarized range: top pair, middle pair, ace-high, gutshots. The small sizing does not require only strong hands and bluffs.
Dominated Hand
A hand that shares one card with an opponent's hand but has a weaker kicker. Dominated hands win less than 25% of the time heads-up because they need to hit their weaker kicker specifically to win. Avoiding dominated situations is a fundamental leak-plugging exercise.
You hold K-T and your opponent holds A-K. You share the king, but when a king hits the board you lose to the ace kicker. You are dominated with roughly 24% equity.
Donk Bet
A bet made out of position into the preflop aggressor, leading into the player who took initiative on the previous street. Once considered a beginner mistake, donk betting has become a viable strategy on certain board textures where the caller's range has a significant advantage.
You called a raise from the big blind and lead out for $12 on a 7-6-5 flop into the preflop raiser. Your range smashes this board harder than theirs and a donk bet is theoretically correct.
Double Up
Winning an all-in confrontation to approximately double your chip stack. In tournaments, doubling up at the right time can shift your position from short stack to contender.
You shove 15BB with A-K, get called by Q-Q, and hit an ace on the flop to double up to 30BB.
Downswing
An extended period of losing that takes your results significantly below your expected win rate. Downswings are an inevitable part of poker variance. The severity and frequency of downswings depend on your win rate, playing style, and the number of hands played. Understanding their statistical likelihood prevents overreaction.
Your database shows a 20 buy-in downswing over 40K hands. The variance calculator says a winning player at your stake has a 35% chance of experiencing this at some point in 100K hands. It is painful but statistically normal.
Draw
A hand that is not yet complete but has the potential to improve to a strong hand on later streets. Common draws include flush draws (needing one more card of a suit) and straight draws.
You hold 8-7 on a flop of 6-5-K, giving you an open-ended straight draw with eight outs.
Drawing Dead
Having no possible card on future streets that will give you the winning hand. When drawing dead, your equity is exactly 0% regardless of what comes.
You hold 9-8 for a straight draw but your opponent already has a higher straight. No river card saves you. You are drawing dead.
Dry Board
A community card layout with few or no draws available. Dry boards typically have unconnected, rainbow (three different suits) cards with wide gaps between ranks.
A flop of K-7-2 rainbow is a very dry board. No flush draws, no straight draws, and the preflop raiser c-bets profitably with a wide range at a small sizing.
E
Early Position
The first seats to act preflop, typically under the gun and the next one or two seats. Early position requires tighter hand selection because many players still have the option to raise behind you.
You fold K-J offsuit from early position at a full ring table because five players still act after you preflop.
Effective Stack
The smaller of two stacks in a heads-up pot, which determines the maximum amount that can be won or lost. The effective stack governs pot geometry and dictates how many streets of betting are possible.
You have $500 and your opponent has $200. The effective stack is $200, which means SPR and bet sizing should be planned around that number, not your deeper stack.
Equity
Your share of the pot based on the probability of winning the hand at showdown. Equity is expressed as a percentage: if you have 60% equity in a $100 pot, your hand is worth $60 on average.
Your flush draw has roughly 35% equity on the flop against your opponent's top pair in a $80 pot, making your hand worth about $28.
Equity Denial
Forcing an opponent to fold a hand that had equity in the pot, capturing the value they would have realized if allowed to see future streets. Equity denial is the primary reason to bet with medium-strength hands rather than check. Every time you fold out a hand with 20% equity, you gain that 20% share of the pot.
You bet the flop with top pair and villain folds a gutshot with 17% equity. You denied them $13.60 of equity in the $80 pot. That is the hidden profit of betting, beyond what you win when called.
Equity Realization
The percentage of your raw equity that you actually capture based on your position, skill, stack depth, and ability to navigate post-flop streets. A hand with 40% raw equity might only realize 30% of it out of position against a strong player because of the informational disadvantage. Position is the single biggest factor in equity realization.
7-6 suited has 42% raw equity against a CO open, but from the big blind it only realizes about 70% of that due to positional disadvantage. From the button, it realizes closer to 95%. That gap is why position matters so much.
Expected Value (EV)
The average amount a decision will win or lose over the long run. A positive EV (+EV) play profits over time; a negative EV (-EV) play loses over time. EV is the single most important concept in poker decision-making.
Calling a $50 bet into a $150 pot with 35% equity is +EV because you need 25% equity to break even and you have 35%.
Exploitative Play
Deliberately deviating from GTO strategy to take advantage of a specific opponent's mistakes. Exploitative play increases EV against weak players but opens you up to being counter-exploited by observant opponents. The best players blend GTO foundations with exploitative adjustments.
Villain folds to river bets 80% of the time. GTO says to bluff this river 30% of the time. Exploitative play says to bluff 60%+ because villain folds far too much. If they adjust, you adjust back.
F
Fast Play
Betting and raising aggressively with a strong hand to build the pot and charge draws. Fast playing is the opposite of slow playing and is generally the preferred approach.
You flop a set on a wet board with flush and straight draws possible, so you fast-play by betting 75% pot immediately.
Fast-Fold Poker
An online poker format where you are moved to a new table with new opponents the instant you fold a hand. Zoom (PokerStars), Rush & Cash (GGPoker), and Fast Forward (partypoker) are branded versions. Fast-fold allows 250+ hands per hour at a single table versus 70-80 in a regular game.
You play four Zoom tables at $0.25/$0.50 and log 1,000 hands per hour. The volume crushes regular tables but the player pool is tougher because recreational players do not sit in fast-fold games as often.
Final Table
The last table remaining in a multi-table tournament, typically the final 9 or 10 players. Making the final table represents a deep run and is where the largest pay jumps occur.
You reach the final table of a 500-player MTT with an above-average stack of 45BB, guaranteeing at least a 10x return on your buy-in.
Final Table Deal
An agreement among remaining tournament players to redistribute the prize pool based on current chip counts, typically using an ICM calculation. Deals lock in equity and reduce variance. Most deals leave a portion of the remaining prize pool to play for.
Three players remain with a $20K first prize. ICM says your 40% of chips is worth $12,500. You agree to an ICM chop with $2K left to play for, locking in $10,500 guaranteed.
Fish
A weak or inexperienced player who makes frequent strategic errors. The term is poker slang and is generally used to identify players whose mistakes create profitable opportunities for stronger players.
The fish at seat 3 is calling every preflop raise and chasing gutshots. Sit to their left if possible.
Five-Bet
The fifth bet in a preflop sequence: open, three-bet, four-bet, five-bet. At 100bb stacks, a five-bet is almost always an all-in shove. Five-bet ranges are extremely narrow at equilibrium: pocket aces, pocket kings, and occasional bluffs.
You four-bet to $90 with A-K suited, and villain five-bet jams for $450. At this point you are looking at a range of AA, KK, and the occasional AK or bluff.
Flat Call
Calling a bet or raise without re-raising, typically done with a strong hand to disguise its strength or to keep the pot manageable. Flatting is a deliberate decision distinct from passively calling.
You flat-call a $15 raise with pocket queens to keep the pot small and play post-flop in position rather than three-betting.
Float
Calling a bet with a weak hand, usually in position, with the intention of bluffing on a later street. Floating exploits opponents who c-bet frequently but give up on the turn.
You call your opponent's flop c-bet with ace-high, planning to bet the turn when they check, and you take down the pot.
Flop
The first three community cards dealt face-up simultaneously after the first round of betting. The flop is where hand values become concrete and most strategic decisions in hold'em begin.
The flop comes A-9-4 with two clubs, giving you top pair with your A-J but putting a flush draw on the board.
Flush
A hand containing five cards of the same suit. Flushes rank above straights and below full houses. When two players have flushes, the one with the highest card wins.
You hold A-8 of diamonds and the board has three diamonds, giving you the nut flush.
Flush Draw
Having four cards of the same suit with one or more cards to come. A flush draw has nine outs and roughly 35% equity on the flop (19% on the turn) to complete.
You hold K-9 of spades and the flop has two spades. Nine outs to hit by the river.
Fold
Discarding your hand and forfeiting any claim to the current pot. Folding is the most common action in poker and knowing when to fold is a core winning skill.
You fold your 9-3 offsuit from early position, a clear fold regardless of game format or stack size.
Fold Equity
The additional value gained from the possibility that your opponent will fold to your bet. Fold equity is what makes bluffing profitable: even a weak hand has value when opponents may not call.
Your semi-bluff all-in has 30% pot equity plus an estimated 40% chance your opponent folds, making the shove profitable even though you are behind when called.
Four-Bet
The fourth raise in a betting sequence: open, three-bet, four-bet. Four-bets represent a very strong range or a polarized bluffing range and typically commit a significant portion of your stack.
You four-bet to $90 with pocket aces after your opponent three-bets your $12 open to $38.
Freeroll
A tournament with no entry fee that awards real prizes, or a situation where a player can win more but cannot lose. Online poker sites use freerolls to attract new players.
You both have ace-high flushes but you also have a straight flush draw. You are freerolling because you can win but cannot lose.
Frequency
The percentage of the time a player takes a specific action with a given hand or range at a decision point. Solvers output strategies as frequencies: for example, betting 67% and checking 33% with a specific hand. A complete GTO strategy specifies a frequency for every action with every hand at every node.
The solver says to check-raise this combo 35% of the time on this flop. That means in 100 identical situations, you check-raise 35 and check-call or check-fold the other 65.
Full Ring
A poker table with 9 or 10 players. Full ring games play tighter than six-max because more players means a higher chance someone holds a strong hand.
At a full ring table with 9 players, you should open roughly 15% of hands from early position compared to 20%+ at six-max.
G
Game Selection
Choosing which specific tables, stakes, or tournaments to play based on the expected profitability. Game selection often matters more than technical skill: the best player at the wrong table makes less than an average player at a great table.
Two $2/$5 tables are running. One has three regulars and two tight unknowns. The other has a player open-limping every hand and another who is visibly tilted. The second table will be 5x more profitable.
Game Tree
A branching diagram representing every possible sequence of actions in a poker hand from preflop to showdown. Each branch point is a node where a player makes a decision. The full NLHE game tree is astronomically large, which is why solvers use abstractions to make it computable.
A simplified game tree for a single street: Hero can bet or check. If hero bets, villain can call, raise, or fold. If villain raises, hero can call, re-raise, or fold. Each branch leads to another node or a terminal outcome.
Geometric Bet Sizing
A bet sizing strategy where you choose a consistent percentage of the pot across multiple streets so that you get all-in on the river exactly. Geometric sizing maximizes the pot you can build given a certain number of streets and a fixed SPR. The formula accounts for how many streets remain and the current stack-to-pot ratio.
The pot is $40 and effective stacks are $200. You have three streets to get all-in. Geometric sizing says to bet about 65% pot on each street: $26 into $40 (pot becomes $92), $60 into $92 (pot becomes $212), and then the remaining $114 on the river. Each street uses the same proportion.
Grinder
A player who earns a steady income through disciplined, low-variance poker over many hours. Grinders prioritize consistency and volume over flashy plays.
She grinds $2/$5 cash games for 40 hours a week, earning a reliable $35/hour over a 200K-hand sample.
GTO
Game Theory Optimal: a strategy that cannot be exploited by any opponent over the long run. GTO play uses mixed strategies (betting and checking at calculated frequencies) to remain balanced and unexploitable.
A GTO solver says to check-raise this flop 25% of the time with your specific combo to stay balanced across your entire range.
GTO Wizard
A browser-based GTO training platform that provides pre-solved solutions for virtually every common poker scenario. Unlike desktop solvers that require manual setup, GTO Wizard offers instant access to preflop and postflop strategies, practice modes, and aggregated reports.
You pull up the BTN vs BB single-raised pot on GTO Wizard and check the aggregated flop report. It shows that on K-high dry boards, the solver bets b33 at 70%+ frequency, confirming your instinct to use a small sizing here.
Gutshot
A straight draw where only one specific rank completes the straight (also called an inside straight draw). A gutshot has four outs, roughly half as many as an open-ended straight draw.
You hold 8-6 on a board of 9-5-2. Only a 7 completes your gutshot straight draw, giving you four outs.
H
Hand Converter
A tool that transforms raw hand history text into formatted, readable hand breakdowns suitable for posting in forums, study groups, or coaching sessions. Hand converters strip out unnecessary data and present the key information clearly.
You paste a raw PokerStars hand history into a converter and it outputs a clean, formatted hand with player positions, stack sizes, and action on each street, ready to post in your study group.
Hand History
A text file recorded by online poker sites documenting every action in a hand: cards dealt, bet sizes, timing, and the final result. Hand histories are the raw data that tracking software imports for analysis. Reviewing hand histories is the most efficient way to study your own play.
You download your hand histories from PokerStars and import them into PokerTracker. The software parses thousands of hands and builds a statistical profile for every opponent you have played against.
Hand-for-Hand
A tournament procedure used near the money bubble where all tables must complete each hand before the next one is dealt. Hand-for-hand play prevents players from stalling to let other tables bust a player first.
With 37 players left and 36 getting paid, the tournament goes hand-for-hand. Every table plays one hand simultaneously, waits, then deals the next.
Heads-Up
A pot or game involving exactly two players. Heads-up play occurs naturally at the end of tournaments or in dedicated heads-up cash formats and requires significant adjustment to strategy.
You reach heads-up in the tournament with a 2:1 chip lead and widen your opening range to about 70% of hands.
Hero Call
Calling a large bet or raise with a marginal hand based on a read that your opponent is bluffing. Hero calls are high-risk decisions that rely on opponent-specific information rather than standard strategy.
Your opponent shoves the river for $200 into a $150 pot, and you hero call with third pair because their line makes no sense for a value hand.
High Card
The lowest-ranking poker hand, where no pair or better combination is made. The hand's value is determined by the highest individual card, then kickers in descending order.
You hold A-9 on a board of K-7-4-3-2 with no pair. Your hand is ace-high, which loses to any pair or better.
Hijack
The seat two positions to the right of the button (one seat right of the cutoff). The hijack is a middle-to-late position that can open a moderately wide range.
You open-raise to $6 from the hijack with A-T suited, planning to fold to a three-bet from the blinds.
Hit and Run
Leaving a cash game shortly after winning a large pot. Considered poor etiquette because it denies opponents a chance to win their money back. Some rooms have minimum session requirements to discourage this behavior.
A player sits down, wins a $500 pot on their third hand, and immediately racks up and leaves. The table groans. That is a hit and run.
Hole Cards
The private cards dealt face-down to each player, visible only to that player. In Texas Hold'em, each player receives two hole cards that they combine with community cards.
You peek at your hole cards and see pocket queens, a premium starting hand.
Horse
The player being staked in a staking arrangement. The horse provides the skill and puts in the playing hours while the backer provides the bankroll. The term comes from horse racing where backers bet on specific horses.
Your stable has 8 horses grinding the $55-$215 MTT schedule on GGPoker. You review their play weekly and adjust their game selection based on performance.
HUD (Heads-Up Display)
Software that overlays real-time statistics on your opponents directly on the poker table during play. HUDs pull data from your hand history database and display metrics like VPIP, PFR, 3-bet%, and aggression factor. HUDs are legal on most sites but banned on some (notably PokerStars has restricted them on certain game types).
Your HUD shows the player in the cutoff has a VPIP of 42 and a PFR of 8 over 300 hands. They are a loose-passive fish. You widen your value betting range and stop bluffing them.
Hyper-Turbo
A tournament format with extremely fast blind increases, typically every 3 minutes with 300-500 starting chips. Hyper-turbos are almost entirely push-or-fold play after a few levels. They are high-variance but offer rapid volume.
You register a hyper-turbo SNG and start with 500 chips at 10/20 blinds. By level 5 you are at 50/100 with only 5 big blinds. The tournament is 90% preflop shoving decisions.
I
ICM
The Independent Chip Model, a mathematical framework that converts tournament chip stacks into real-money equity based on the payout structure. ICM shows that chips won are worth less than chips lost in tournament play.
With three players left and payouts of $5K/$3K/$2K, ICM calculates that your 50% of chips is worth only $3,800 in equity, not $5,000.
ICM Tax
The implicit cost of risking chips in a tournament, measured as the difference between chip EV and dollar EV. Every all-in confrontation in a tournament carries an ICM tax because the chips you stand to gain are worth less per unit than the chips you stand to lose. The tax is highest on the bubble and at final tables.
You have a +200 chip EV call but ICM calculates it as -$8 in real equity. The $8 gap is the ICM tax. Near the bubble, this tax can turn clearly profitable chip EV plays into losing dollar EV plays.
Implied Odds
The ratio of what you expect to win on future streets (beyond the current pot) versus what it costs to call now. Implied odds account for additional bets you can extract when you hit your draw.
You need 5:1 to call with your gutshot, but the pot only offers 3:1. However, your opponent's deep stack and tendency to pay off gives you strong implied odds to continue.
In Position
Acting after your opponent on each post-flop betting round. Being in position is a major strategic advantage because you get to see what your opponent does before making your decision.
You called from the button, putting you in position for the entire hand. You see your opponent check before deciding to bet.
Indifference
The state in a GTO solution where a player has exactly zero EV difference between two actions with a specific hand. At equilibrium, hands on the boundary between betting and checking (or calling and folding) are indifferent: they perform equally well either way. The concept of indifference is what allows solvers to use mixed strategies.
The solver shows that you call the river with K-J for exactly 0 EV. You are indifferent between calling and folding. Your opponent's bluffing frequency is precisely calibrated to make this hand break even as a call.
Isolate
Raising with the goal of getting heads-up against a specific player, usually a weaker one. Isolation raises target limpers or short stacks to play a pot with a positional or skill advantage.
The fish in seat 5 limps, and you raise to $15 to isolate them and play heads-up in position.
J
Jam
Another term for going all-in, typically implying an aggressive shove rather than a reluctant call. Jamming is most common with short stacks in tournament play.
With 8BB left in the tournament, you jam all-in from the cutoff with A-5 suited.
K
Kelly Criterion
A mathematical formula that determines the optimal percentage of your bankroll to risk on a bet given your edge and the odds offered. Full Kelly is aggressive and leads to large swings; most poker players use fractional Kelly (typically 50-70%) for more conservative bankroll management.
The Kelly calculator says your edge at $2/$5 justifies risking 2.3% of your bankroll per session. With a $15,000 bankroll, that means buying in for $345, roughly 70BB. Most players round to a standard 100BB buy-in and accept the slight over-Kelly risk.
Kicker
The unpaired side card that breaks ties when two players have the same pair or other hand rank. Kicker strength is a critical factor in choosing which hands to play.
You both have a pair of aces, but your A-K beats your opponent's A-9 because your king kicker plays.
L
LAG
Loose-Aggressive: a playing style characterized by entering many pots and betting or raising frequently. LAGs apply constant pressure, making them difficult to play against but also more vulnerable to variance.
The LAG in seat 7 has three-bet four times in the last orbit and shown a bluff twice. Adjust by widening your calling range against them.
Late Position
The cutoff and button seats, which act last or near-last in the betting order. Late position is the most profitable because you have maximum information when making decisions.
From late position you can profitably open hands like K-9 suited or J-T offsuit that you would fold from early position.
Late Registration
The window after a tournament starts during which new players can still buy in. Late registration periods vary from 30 minutes to several hours. Registering late means fewer hands at the lower blind levels but also lets you see if the tournament will meet its guarantee.
The $109 Sunday tournament has a 2-hour late registration window. You register 90 minutes late, starting with 60BB instead of the original 200BB, but the field has already ballooned past the guarantee.
Limp
Entering the pot preflop by just calling the big blind rather than raising. Open-limping is generally considered a weak play because it fails to build the pot or thin the field.
You limp with 5-5 from early position hoping to see a cheap flop, but the button raises and you fold. A better play would have been to raise or fold initially.
Linear Range
A range that includes the strongest hands down to a cutoff point without skipping any, like a ranked list taken from the top. A linear three-bet range includes hands like AA, KK, QQ, JJ, AK, AQ, AJs in order. The alternative is a polarized range that includes the best hands and some weak bluffs but skips the middle.
Against a recreational player who calls three-bets too wide, a linear three-betting range is more profitable than a polarized one because your medium-strength hands have more value against their weak calling range.
Live Read
A physical or behavioral observation of an opponent that provides information about the strength of their hand. Live reads include timing tells, bet sizing patterns, and body language.
You notice your opponent's hand shakes when he reaches for chips to bet the river, a classic live read suggesting genuine strength.
Lojack
The seat two positions to the right of the cutoff (three from the button) at a full ring table. Also called UTG+2 or MP2 depending on the notation. The lojack is the boundary between tight early-position play and the wider late-position ranges.
From the lojack you can start opening hands like A-Ts, K-Qs, and 77+ that you would fold from under the gun.
M
Made Hand
A hand that has already achieved a complete poker ranking (pair or better) without needing additional cards. Made hands are contrasted with draws, which need improvement to win.
You hold A-J on a J-8-3 flop. Top pair is a made hand. Your opponent holds 9-T and needs a 7 or Q to complete their straight. They have a draw.
Makeup
The accumulated losses in a staking arrangement that the horse must earn back before profit sharing begins. If a backer invests $10,000 and the player loses $3,000, there is $3,000 in makeup. The player must win back that $3,000 before any profits are split. Makeup terms are the most important clause in a staking contract.
You are $8,000 in makeup after a rough month. You win $12,000 this month. The first $8,000 clears your makeup, and the remaining $4,000 is split 50/50 with your backer: you take home $2,000.
Maniac
An extremely loose and aggressive player who raises and re-raises with a very wide range, often at inappropriate times. Maniacs create high-variance situations that can be very profitable if you adjust correctly.
The maniac has three-bet 30% of hands in the last 50. Tighten your opening range and widen your calling range against them.
Markup
A premium charged above face value when selling a share of tournament action. Strong players with proven track records charge markup because their expected ROI makes shares worth more than the raw buy-in cost. Markup is expressed as a multiplier (e.g., 1.3x means 30% premium).
A winning MTT reg sells action in a $10K tournament at 1.25x markup. A 10% piece costs $1,250 instead of $1,000 because the player has a documented positive ROI in this field.
Merged Range
A range that includes strong, medium, and some weaker hands without a clear gap between value and bluffs. Merged ranges are the same concept as depolarized ranges and are used with smaller bet sizes.
You bet b33 on a dry flop with a merged range: top pair, middle pair, bottom pair, ace-high, some gutshots. Everything gets lumped into one small bet rather than splitting into check and big bet.
Micro Stakes
The lowest stake levels available online, typically $0.01/$0.02 up to $0.10/$0.25 in cash games or tournaments under $10. Micro stakes are where most players learn the game and build their initial bankroll.
You start your online poker career at $0.05/$0.10 micro stakes with a $300 bankroll, giving you 30 buy-ins.
Middle Position
The seats between early and late position at a full ring table, typically seats 4 through 6. Middle position allows a slightly wider range than early position but still has several players left to act.
From middle position at a 9-handed table you open A-J suited, which is too weak for early position but fine here.
Min-Cash
Finishing a tournament just inside the money, receiving the smallest possible payout. Min-cashing is often considered a failure in terms of ROI because the payout barely exceeds the buy-in, yet the time investment is significant.
You bust 44th of 45 paid spots in a $100 tournament, collecting a $150 min-cash. You spent 5 hours for $50 profit. Aggressive play near the bubble would have given you a shot at the final table payouts.
Minimum Defense Frequency (MDF)
The minimum percentage of your range you must continue with (call or raise) to prevent your opponent from profitably bluffing with any two cards. MDF = 1 - alpha = pot / (pot + bet). Against a pot-sized bet, MDF is 50%. Against a half-pot bet, MDF is 67%. MDF is the defender's counterpart to alpha.
Villain bets $50 into a $100 pot. MDF = 100 / (100 + 50) = 67%. You must continue with at least 67% of your range here or villain profits by bluffing at any frequency.
Mixed Strategy
A strategy where a player randomizes between two or more actions with a specific hand at a specific frequency. In GTO solutions, many hands have mixed strategies: for example, betting 60% and checking 40%. Mixed strategies exist because both actions yield equal EV for that hand at equilibrium.
The solver shows check 55%, bet b33 30%, bet b75 15% for your specific hand on this flop. You need to randomize across those actions at those frequencies to play unexploitably.
Muck
To discard your hand without showing it, either when folding or at showdown if you know you are beaten. The muck is also the pile of discarded cards. In online poker, mucking at showdown is typically automatic if you lose.
Villain bets the river and you fold, mucking your cards face-down. No one at the table sees what you had.
Multi-Table Tournament (MTT)
A tournament format with dozens to thousands of players spread across multiple tables. As players are eliminated, tables are consolidated until one player has all the chips. MTTs offer the largest prize pools relative to buy-in.
You enter a $55 MTT with 2,000 runners and a $100K guaranteed prize pool, playing for 8 hours to reach the final table.
Multi-Tabling
Playing multiple poker tables simultaneously online. Multi-tabling increases hourly volume and reduces variance per hour, but it can decrease the quality of your decisions. Finding the optimal number of tables is a personal trade-off between volume and focus.
You play 6 tables of $0.50/$1 Zoom at once, seeing about 1,500 hands per hour. Your win rate drops from 5bb/100 at one table to 3bb/100 across six, but your hourly rate nearly triples.
Multi-Way Pot
A pot with three or more players seeing the flop. Multi-way pots play very differently than heads-up pots because equity is distributed among more players, reducing each individual's share. Bluffing frequency drops and hand strength requirements increase significantly.
Four players see the flop. Your top pair with a weak kicker, which would be a clear value bet heads-up, should often be checked in this spot because someone likely has you beaten or has strong draws.
N
Nash Equilibrium
A state where no player can improve their expected value by unilaterally changing their strategy. In poker, Nash equilibrium is the mathematical foundation of GTO play. At equilibrium, every player's strategy is the best response to every other player's strategy simultaneously.
In a push-or-fold scenario with 10BB, Nash equilibrium charts tell you exactly which hands to shove from each position. If both players follow the chart, neither can do better by deviating.
Nit
An extremely tight player who only enters pots with premium hands. Nits are easy to play against because their range is narrow and predictable, but they rarely lose large pots.
The nit in seat 2 has played 6% of hands over 200 hands. When they raise, fold everything but your strongest holdings.
No-Limit
A betting structure where a player can bet any amount up to their entire stack at any time. No-Limit Texas Hold'em is the most popular form of poker worldwide.
In a no-limit game with a $100 stack, you can bet anywhere from the minimum ($2) to your entire $100 on any street.
Node
Any single point in the poker game tree where an action occurs. Nodes include decision nodes (where a player chooses an action), chance nodes (where a card is dealt), and terminal nodes (where the hand ends). When someone says 'this node,' they mean a specific game state defined by the board, positions, pot size, stack depths, and action so far.
You are studying the SB vs BB 3bet pot, flop Ks7d2c, IP checks node. This single node contains your entire range, the board, the pot size, and the action history. The solver's output for this node shows how to play every hand in your range.
Nodelock
A solver feature that lets you fix an opponent's strategy at a specific node and then re-solve to find your best response. Nodelocking is used for exploitative study: you tell the solver how villain actually plays (not how they should play) and it shows you the maximally exploitative counter-strategy.
You nodelock the BB's flop strategy to fold 70% to c-bets (population average). The solver re-solves and shows you should c-bet 85% of your range for a tiny size, exploiting their excessive folding.
Nut Advantage
Having a higher concentration of the strongest possible hands (nuts and near-nuts) in your range compared to your opponent at a given point in the hand. Nut advantage is distinct from range advantage. You can have range advantage (more equity on average) without nut advantage, or vice versa.
On an A-K-Q rainbow flop, the preflop three-bettor has nut advantage because their range contains more AA, KK, QQ, and AK combos. Even though the caller might have slightly more total equity from hands like QJ and JT, the three-bettor can use large sizings because they hold more of the top of the range.
Nut Blocker
Holding a card that specifically blocks your opponent from having the best possible hand. Nut blockers are the most valuable cards for selecting bluffs because they reduce the likelihood of running into the nuts when you bluff.
The board is 8s-9s-Ts-2d-3c. You hold the As (nut flush blocker) with a 4 offsuit. You have nothing, but villain cannot have the nut flush. This makes your hand an excellent bluff candidate.
Nuts
The best possible hand given the current board. Having the nuts means no other hand can beat you. The nut hand can change with each new community card.
You hold A-K of spades on a board of Q-J-T-4-2 with three spades. You have the nut straight and nut flush simultaneously.
O
Off-Suit
A starting hand where the two hole cards are of different suits. Off-suit hands are weaker than their suited counterparts because they cannot make flushes.
A-K offsuit has about 3% less equity preflop than A-K suited against a random hand because of the lost flush potential.
Open
Making the first voluntary raise preflop. The open-raise sets the hand's initial dynamic: sizing, position, and range all factor into what constitutes a profitable open.
You open to 2.5x from the cutoff with A-T suited, the standard sizing at most online stakes.
Open-Ended Straight Draw
A straight draw that can be completed by cards on either end, giving you eight outs. Open-ended straight draws have roughly 31% equity on the flop to complete by the river.
You hold 8-7 on a flop of 9-6-2. Either a ten or a five completes your straight, giving you eight outs.
Out
A card remaining in the deck that will improve your hand to what you believe is the winner. Counting outs accurately is essential for calculating your probability of winning a hand.
Your flush draw has 9 outs, and with two cards to come, you have roughly a 35% chance of completing the flush.
Overbet
A bet larger than the current pot size. Overbets are used with polarized ranges (either very strong hands or bluffs) to maximize value or fold equity. Overbets are most common when you have nut advantage and your opponent's range is capped.
You bet $150 into a $100 pot on the river with the nut straight. The overbet targets your opponent's strong-but-not-nut holdings that feel compelled to call.
Overcard
A card in your hand that is higher than any card on the board. Overcards can improve to top pair but are not yet a made hand.
You hold A-K on a board of 9-7-4. Both your ace and king are overcards, giving you six outs to top pair.
Overlay
When a tournament's guaranteed prize pool exceeds the total buy-ins collected, the operator covers the difference. An overlay creates extra value for every player in the tournament.
A $50K guaranteed tournament attracts only $38K in buy-ins, creating a $12K overlay, free money in the prize pool.
Overpair
A pocket pair higher than any card on the board. Overpairs are strong made hands that beat any single-pair holding on the current board.
You hold Q-Q on a flop of J-8-3. Your queens are an overpair, beating top pair and any lower pair.
P
Pair
Two cards of the same rank. A pair beats high-card hands but loses to two pair and above. The strength of a pair depends on its rank and kicker.
You hold A-J and the flop comes J-8-3. You have a pair of jacks with an ace kicker, a strong top-pair hand.
Pay Jump
The difference in payout between consecutive finishing positions in a tournament. Pay jumps increase dramatically at final tables. ICM-aware play factors in pay jumps to determine whether a risky confrontation is worth the potential gain versus the guaranteed loss of equity.
Finishing 3rd pays $8,000 and 2nd pays $13,000. The pay jump from 3rd to 2nd is $5,000. Compare that to 9th at $2,500 and 8th at $2,800, a $300 pay jump. This is why ICM matters more as you go deeper.
Payoff
Calling a bet on the river when you suspect you are beaten, because the pot odds justify the call. A payoff is not a mistake; sometimes the price is right even if you expect to lose most of the time.
You call a $40 river bet into a $200 pot with two pair. You only need to be good 17% of the time, so paying off is correct.
PFR (Preflop Raise %)
A HUD statistic showing the percentage of hands a player raises preflop. PFR combined with VPIP reveals a player's style: a large gap between VPIP and PFR means they call a lot (passive), while similar VPIP and PFR means they rarely limp (aggressive).
Villain shows 28/8 (VPIP/PFR) over 400 hands. They voluntarily put money in 28% of hands but only raise 8%. The 20-point gap tells you they limp and call far too much. Value bet relentlessly.
PioSolver
A desktop GTO solver that calculates Nash equilibrium strategies for user-defined poker scenarios. PioSolver requires manual input of ranges, board, bet sizes, and stack depth, then solves for optimal play. It is the most widely used research tool among professional players.
You set up a PioSolver sim for BTN vs BB single-raised pot on A-7-2 rainbow with 100BB stacks. After 10 minutes of solving to 0.3% accuracy, it outputs the full strategy for both players across all streets.
Pocket Pair
A starting hand where both hole cards are the same rank. Pocket pairs range from pocket aces (the best starting hand) to pocket twos. Small pocket pairs are primarily played for set-mining value.
You hold pocket eights and call a raise hoping to flop a set, which happens roughly 12% of the time.
Polarized Range
A betting range that contains only very strong hands (value) and bluffs, with nothing in between. Polarized ranges are typical for river bets and large bet sizes.
Your river overbet range is polarized: you either have the nuts or a complete bluff, while your medium-strength hands check.
Population Tendencies
The average strategic patterns of a player pool at a given stake level. Tracking software can aggregate data across thousands of opponents to reveal how the population as a whole deviates from GTO. These tendencies inform exploitative adjustments against unknown players.
Your database shows the population folds to river bets 62% of the time at $0.50/$1 Zoom. GTO says they should fold 50% against a pot-sized bet. This means you should bluff more than solver frequency until you have reads suggesting otherwise.
Position
Your seat relative to the dealer button, which determines when you act in each betting round. Acting last provides an information advantage on every betting round.
Over a large sample, the button wins an average of 25-30bb/100 while the blinds lose 30-50bb/100. That is entirely a function of position.
Pot
The total amount of chips in the center of the table that players are competing for. The pot grows as players bet, raise, and call throughout the hand.
After preflop action the pot is $24, and your opponent bets $16, bringing the total pot to $40 when the action reaches you.
Pot Control
Deliberately keeping the pot small with medium-strength hands to avoid committing large amounts with a hand that is too strong to fold but too weak to stack off with. Pot control often means checking back a street or calling instead of raising.
You have second pair on a wet board. Rather than betting and facing a check-raise, you check back the turn to control the pot. You plan to call a reasonable river bet and go to showdown.
Pot Geometry
The mathematical relationship between the pot size, stack sizes, and the number of betting streets remaining. Pot geometry determines what sizings are possible to get all-in, what hands can be stacked, and how many streets of value you can extract.
You have $150 behind with $50 in the pot on the flop. Two streets remain. If you bet $35 on the flop (pot becomes $120) and $115 on the turn, you are all-in. Pot geometry dictates this two-street plan.
Pot Limit
A betting structure where the maximum bet or raise is the current size of the pot. Pot-Limit Omaha (PLO) is the most common pot-limit format.
In a pot-limit game with a $50 pot, the maximum you can bet is $50, and after calling a $50 bet the maximum raise is to $200.
Pot Odds
The ratio of the current pot size to the cost of a call. Pot odds tell you the minimum equity you need to profitably call a bet. If the pot is $100 and you must call $25, you are getting 4:1 and need at least 20% equity.
The pot is $60, your opponent bets $20, and you need to call $20 to win $80. Pot odds of 4:1, requiring just 20% equity.
Pot-Committed
Having invested so much of your stack into a pot that folding no longer makes mathematical sense. When pot-committed, the pot odds require you to call regardless of your hand strength.
You have put $180 of your $200 stack into a $400 pot. With only $20 behind, you are pot-committed and should call any bet.
Preflop
The first betting round, which occurs after hole cards are dealt but before any community cards appear. Preflop decisions (fold, call, or raise) set the foundation for the entire hand.
You raise to $6 preflop with A-Q suited from middle position and get one caller from the big blind.
Probe Bet
A bet made out of position on the turn after the preflop aggressor checked behind on the flop. Probe bets test whether the opponent's flop check indicates genuine weakness.
Your opponent raised preflop, you called from the big blind, and when they check the flop you fire a 40% pot probe on the turn.
Progressive Knockout (PKO)
A tournament format where half of each player's buy-in becomes a bounty on their head. When you eliminate someone, you collect half their bounty and the other half is added to your own bounty, making you a bigger target.
You knock out a player with a $40 bounty in a PKO. $20 goes to your cash prize instantly, and $20 is added to your own bounty.
Protection Bet
A bet made primarily to deny free cards to opponents who have drawing hands. Protection bets aim to charge draws and prevent them from realizing their equity cheaply. The concept is related to equity denial.
You hold top pair on a board with a flush draw and a straight draw. Even though you are currently ahead, you bet 75% pot to force draws to pay or fold. If they call, they are paying above the mathematical price for their draw.
Pure Strategy
A strategy where a player always takes the same action with a specific hand at a specific decision point, with 100% frequency. The opposite of a mixed strategy. Pure strategies are simpler to implement because they require no randomization.
The solver says to always bet your set of aces on this flop: 100% frequency, no mixing. This is a pure strategy because the hand is too strong to ever check.
Q
Quads
Four of a kind: four cards of the same rank. Quads is the second-highest hand in poker, beaten only by a straight flush or royal flush.
You hold pocket tens and the board runs out T-T-6-3-K, giving you quad tens, a near-unbeatable hand.
R
Ragged Board
A board with low, unconnected cards that are unlikely to have helped most players' holdings. Ragged boards favor the preflop raiser's range.
A flop of 7-3-2 rainbow is ragged. It misses most hands, making a c-bet effective.
Raise
Increasing the size of the current bet, forcing other players to match the new amount or fold. Raising is an aggressive action that builds the pot and puts pressure on opponents.
Your opponent bets $10 and you raise to $30 with top pair, hoping to get value from draws and weaker pairs.
Rake
The fee taken by the casino or poker site from each pot or tournament entry. Rake is typically 2.5-5% of each cash game pot (with a cap) or 10% of tournament buy-ins. Beating the rake is necessary to be a winning player.
In a $1/$2 game with 5% rake capped at $5, a $200 pot costs $5 in rake. Over a session this adds up significantly.
Rakeback
A rebate of a percentage of rake paid, returned to the player by the poker site. Rakeback is a significant part of a winning player's income at small and mid-stakes.
With 30% rakeback, if you pay $3,000 in rake this month, you receive $900 back, turning a marginal winner into a solid one.
Range
The complete set of hands a player could have in a given situation. Thinking in ranges rather than putting opponents on a single hand is fundamental to strong poker strategy.
Your opponent's preflop raising range from under the gun is roughly the top 12% of hands: pocket pairs 77+, A-Ts+, K-Qs, A-Jo+.
Range Advantage
Having more overall equity across your entire range than your opponent on a given board. Range advantage determines who should bet more frequently and at what sizes. The player with range advantage can apply more pressure because their range as a whole performs better.
On a K-Q-2 rainbow flop in a single-raised pot, the preflop raiser has range advantage because their range contains more KK, QQ, AK, KQ combinations. They can c-bet at high frequency with a small sizing.
Rat-Holing
Removing chips from the table during a cash game session, reducing your active stack while pocketing the profit. Rat-holing is against the rules at most casinos and online sites because it removes chips from play that other players should have a chance to win back.
A player buys in for $200 at $1/$2, runs it up to $600, pockets $400, and continues playing with $200. The floor is called and the player is told to put the chips back.
Re-Entry
A tournament format that allows eliminated players to buy back in for a new stack, usually limited to a specific registration period. Re-entry tournaments effectively increase the prize pool but also increase field size.
You bust the $200 re-entry tournament in the first hour and buy in again for another $200, starting fresh with a new stack.
Reg (Regular)
A regular player at a specific stake or on a specific site: someone who plays consistently and is a known quantity. Regs are typically competent, unlike recreational players. The reg-to-rec ratio at a table determines its profitability.
The $1/$2 Zoom pool on PokerStars is 70% regs during weekday afternoons but drops to 50% on Sunday evenings when recreational players log on.
Resteal
A three-bet made specifically against a late-position open that you suspect is a steal attempt. Restealing is most common from the blinds against cutoff or button opens and is a key part of tournament poker strategy.
The button opens to 2.2x for the fifth time in seven orbits. You resteal by three-betting to 7x from the big blind with K-9 suited. Their wide stealing range cannot defend against this pressure.
Results-Oriented Thinking
Evaluating the quality of a decision based on its outcome rather than the quality of the reasoning at the time. Results-oriented thinking is a cognitive trap because a correct decision can have a bad result (and vice versa) due to variance. Short-term outcomes carry little information about decision quality.
You made a correct call with 70% equity and lost. Changing your strategy because of this single outcome is results-oriented thinking. You would make the same call again, and you would be right to.
Reverse Implied Odds
The potential to lose additional chips on future streets even if you improve your hand. Reverse implied odds apply when you might make a good hand that is still second-best against your opponent's range.
Calling with a small flush draw is dangerous when your opponent likely has a higher flush draw. You have reverse implied odds because hitting your hand could cost you your stack.
Risk of Ruin
The probability that a player will lose their entire bankroll before reaching a specified profit target. Risk of ruin depends on win rate, standard deviation, and bankroll size. A 5% risk of ruin is a common target for professional players.
With a 3bb/100 win rate, 80bb/100 standard deviation, and 30 buy-in bankroll, your risk of ruin is approximately 15%. Moving to 50 buy-ins drops it below 5%.
River
The fifth and final community card, dealt after the turn. The river completes the board and leads to the final round of betting before showdown.
The river brings the ace of hearts, completing a possible flush and giving you the nut full house with your pocket aces.
Royal Flush
The highest possible hand in poker: A-K-Q-J-T all of the same suit. A royal flush is unbeatable. The odds of being dealt one in hold'em are roughly 1 in 650,000 hands.
You hold A-K of hearts and the board runs out Q-J-T-4-3 with three hearts, giving you a royal flush.
Run It Twice
An agreement between players to deal the remaining community cards twice after going all-in, splitting the pot across both runouts. Running it twice reduces variance without changing long-term expected value.
You are all-in with a flush draw vs. top pair and agree to run it twice. You miss on the first board but hit on the second, splitting the pot.
Runner-Runner
Needing to hit specific cards on both the turn and river to complete a hand. Runner-runner draws are long shots: a runner-runner flush is roughly 4% on the flop.
You have one heart in your hand with one on the flop, and hearts come on both the turn and river to give you a runner-runner flush.
S
Sample Size
The number of hands or tournaments in a dataset. In poker, sample size determines how reliable your results and statistics are. Cash game players need 50,000-100,000+ hands to get a reasonable estimate of their true win rate. Tournament players need hundreds or thousands of events.
You are winning 8bb/100 over 15,000 hands. That sounds great, but the sample is far too small to draw conclusions. Your 95% confidence interval ranges from -2bb to +18bb.
Satellite
A tournament where the prize is an entry ticket to a larger, more expensive tournament rather than cash. Satellites allow players to enter high-buy-in events for a fraction of the cost.
You win a $55 satellite to earn a $530 tournament entry, a 10x return on investment without any cash swap.
Scare Card
A community card that completes an obvious draw or changes the board in a way that is threatening to the likely leading hand. Scare cards create bluffing opportunities for the player representing the draw.
The third heart hits the river, a scare card for your opponent who holds top pair without a heart, allowing you to bluff.
Seat Selection
Choosing your specific seat at a table relative to other players, particularly weak ones. The ideal seat puts recreational players on your right (so you act after them) and tight regulars on your left (so they rarely contest pots with you).
The fish is in seat 3 and seat 4 just opened up. You request a table change to seat 4 so you can isolate the fish in position for the rest of the session.
Selling Action
Offering investors a percentage of your tournament buy-in in exchange for that percentage of your result. Selling action reduces your personal variance and is common for high-stakes tournament players. Strong players sell at markup; break-even players sell at face value.
You are playing a $5,000 WSOP event and sell 60% of your action at 1.2x markup. Investors pay $6,000 total for their 60% share. You keep 40% of any winnings and pay only $2,000 out of pocket.
Semi-Bluff
A bet or raise with a drawing hand that is not yet the best hand but has equity to improve. Semi-bluffs can win the pot immediately (if opponents fold) or win at showdown (if the draw completes).
You raise the flop with a flush draw. If your opponent folds you win now. If they call you still have 35% equity to make the flush.
Session Management
The discipline of controlling when, where, and how long you play poker. Good session management includes setting win/loss limits, recognizing when you have dropped from your A-game, and choosing to play only when conditions are favorable. It is a bankroll management tool as much as a mental game tool.
You set a rule: if you lose 3 buy-ins or have been playing for 4 hours, you take a 30-minute break and reassess. This single rule prevents the worst tilt-fueled sessions.
Set
Three of a kind made with a pocket pair and one matching board card. Sets are among the most profitable hands in poker because they are disguised; opponents rarely see them coming.
You hold pocket sevens and the flop comes K-7-3. You have a set of sevens, a hidden monster.
Short Stack
Having significantly fewer chips than the average or standard buy-in, typically under 30-40 big blinds. Short-stack play revolves around push-or-fold decisions with limited post-flop maneuvering.
With only 12BB in a tournament, you are a short stack and should be looking for spots to shove all-in preflop.
Shot-Taking
Moving up to a higher stake temporarily with a defined plan for when to drop back down if results are bad. Shot-taking is how winning players move up in stakes without risking their entire bankroll. A typical shot-taking rule is to play 3-5 buy-ins at the higher stake and drop back if you lose 2-3.
You have 30 buy-ins for $1/$2 and take a shot at $2/$5 with 3 buy-ins earmarked. If you lose two, you drop back and rebuild. If you run it up, you stay.
Shove
Going all-in, typically as an aggressive bet or raise rather than a call. Shoving is a common tournament strategy with short stacks because it maximizes fold equity.
You shove 15BB from the button with K-T suited, putting maximum pressure on the blinds.
Showdown
The final phase of a hand where remaining players reveal their cards to determine the winner. A hand reaches showdown when all betting rounds are complete and two or more players remain.
After the river bet is called, both players go to showdown. You flip over a flush and scoop the $340 pot.
Side Pot
A separate pot created when one player is all-in and other players continue betting. The all-in player can only win the main pot; the side pot is contested only by players with remaining chips.
Player A goes all-in for $50, players B and C each call. B then bets $100 and C calls. The $150 main pot goes to the best of all three hands, while the $200 side pot is between B and C only.
Sit and Go (SNG)
A tournament that starts as soon as enough players register, typically 6, 9, or 10 players. SNGs have fixed prize structures and are shorter than MTTs, making them popular for bankroll building.
You register for a $10 nine-player SNG that starts when 9 players join and pays the top 3 finishers.
Six-Max
A poker table with a maximum of six players. Six-max is the most popular online cash game format because it plays faster and looser than full ring.
You open 22% of hands from the cutoff at a six-max table compared to 16% at full ring.
Slow Play
Checking or just calling with a very strong hand to disguise its strength and trap opponents into building the pot. Slow playing is risky on wet boards where opponents may draw out for free.
You flop a full house on a dry board and just check-call the flop and turn, then raise the river for maximum value.
Small Blind
The smaller of two forced bets, posted by the player immediately left of the button. The small blind is typically half the big blind and acts first on every post-flop street, a significant positional disadvantage.
In a $1/$2 game you post $1 from the small blind and must act first after the flop, making this the least profitable position.
Snap Call
Calling a bet instantly without deliberation, usually indicating a very strong hand. Online, a snap call appears within 1-2 seconds and can serve as a timing tell.
Your opponent snap-calls your river bet, suggesting they have a strong hand. A bluff would require more thought.
Solver
Software that calculates game-theory-optimal (GTO) strategies for poker scenarios by iterating toward Nash equilibrium. Solvers have transformed poker strategy by providing mathematically perfect solutions that players study and approximate at the table. PioSolver and GTO Wizard are the most widely used.
You run a solver on the river spot that confused you during your session. It shows a 40% bet, 60% check with your exact hand, confirming it was a mixed-strategy spot, not a clear bet.
Spin and Go
A three-player hyper-turbo SNG where the prize pool is randomly determined by a multiplier before the game begins. Multipliers range from 2x to 10,000x+ the buy-in. Spin and Gos are extremely high-variance and resemble a lottery more than traditional poker at the higher multipliers.
You play a $5 Spin and Go. The multiplier lands on 5x, making the prize pool $25. You win in 4 minutes. The next 100 spins are all 2x multipliers.
SPR (Stack-to-Pot Ratio)
The ratio of the effective stack to the pot size at the start of a betting street, usually calculated on the flop. SPR determines how many streets of value (or bluffs) are possible before stacks are all-in. Low SPR (under 4) means one big bet gets you all-in. High SPR (13+) allows multi-street maneuvering.
The pot is $30 after preflop action and effective stacks are $120. SPR = 120/30 = 4. At this SPR, a single pot-sized bet on the flop and a shove on the turn gets all the money in. One-pair hands are strong enough to stack off.
Squeeze
A large re-raise made after an open-raise and one or more callers. The squeeze exploits the dead money from callers who typically have capped, weaker ranges.
An early player raises to $8 and two players flat-call. You squeeze to $40 from the big blind with A-J suited, forcing everyone to fold.
Stable
A group of staked players managed by a single backer or coaching operation. Stables provide bankrolls, coaching, and often a community of players studying together. The stable owner takes a percentage of profits in exchange for these resources.
You join a stable that backs 15 MTT grinders. The stable provides your buy-ins, a solver license, weekly group coaching, and hand review sessions. In return they take 55% of your profits after makeup.
Stack
The total number of chips a player has at the table. Stack size relative to the blinds dictates what strategies and hand ranges are appropriate.
You sit down with a $200 stack at a $1/$2 table, giving you 100 big blinds, the standard buy-in depth.
Staking
An arrangement where one party (the backer) provides the bankroll for another (the horse) in exchange for a share of profits. Staking allows talented players without sufficient bankrolls to play at their appropriate level while giving investors exposure to poker's edge-based returns.
You have proven results at $55 MTTs but your bankroll only supports $11s. A backer stakes you for $55-$109 tournaments at a 50/50 profit split with makeup. Your expected hourly triples.
Standard Deviation
A statistical measure of how spread out your results are around your average win rate. In poker, standard deviation is measured in bb/100 hands. A typical value for NLHE cash games is 60-100 bb/100. Higher standard deviation means wider swings and longer stretches needed to determine your true win rate.
Your win rate is 4bb/100 with a standard deviation of 85bb/100. Over any 1,000-hand stretch, normal variance puts you up or down 20+ buy-ins from expectation.
Steal
An open-raise from late position (cutoff, button, or small blind) aimed at winning the blinds and antes without a fight. Stealing is a core part of winning poker because the blinds represent dead money that adds up over time.
It folds to you on the button and you raise to 2.2x with J-7 suited. Both blinds fold. You pick up 1.5BB in dead money. Do this profitably 300 times per session and it adds up to a significant win rate.
Stone Cold Bluff
A bluff made with a hand that has zero chance of winning at showdown: no pair, no draw, no outs. A stone cold bluff relies entirely on fold equity. It is the purest form of bluffing.
You have 8-high on a board of A-K-Q-7-3 with no draws. You bet the river as a stone cold bluff. If called, you lose. There is no backup plan.
Stop-Loss
A pre-set loss limit for a session beyond which you stop playing. Stop-losses are a session management tool designed to prevent catastrophic tilt-fueled losses. The optimal stop-loss depends on your tilt tendencies and bankroll.
You set a 3 buy-in stop-loss for your $2/$5 sessions. After losing $1,500, you close the app regardless of how you feel. This rule saved you from a 10 buy-in blowup last month.
Straddle
A voluntary blind bet, usually double the big blind, posted before cards are dealt. A straddle effectively increases the stakes for that hand and gives the straddler last action preflop.
The player under the gun straddles to $4 in a $1/$2 game, making the effective preflop bet $4 and getting last action preflop.
Straight
Five cards in sequential rank, such as 8-9-T-J-Q. Straights beat three of a kind but lose to flushes. When two players have straights, the one with the higher top card wins.
You hold 9-8 on a board of T-7-6-K-2, giving you a ten-high straight.
Straight Draw
A hand needing one more card to complete a straight. Straight draws come in two varieties: open-ended (eight outs) and gutshot (four outs).
You hold J-T on a board of 9-8-3, giving you an open-ended straight draw that completes with any queen or seven.
Strategy Simplification
Reducing a complex solver output into a simpler, implementable strategy with minimal EV loss. Full GTO strategies involve mixed frequencies that are impossible for humans to execute perfectly. Simplification might mean always betting instead of mixing bet 70%/check 30%, accepting a tiny EV sacrifice for ease of execution.
The solver mixes between b33 and b75 on this flop. You simplify to always using b33 because the EV difference is 0.5bb per 100 hands and the execution is far cleaner.
Suited
A starting hand where both hole cards are the same suit, giving flush potential. Suited hands have approximately 3% more equity than their off-suit equivalents preflop.
You hold A-5 suited in hearts. The suited component adds flush potential that makes this hand playable from late position.
Suited Connectors
Starting hands with consecutive ranks of the same suit, like 7-8 of clubs or J-T of spades. Suited connectors can make straights and flushes, making them valuable speculative hands in deep-stacked play.
You call a raise with 6-7 of diamonds from the button. Suited connectors that play well in position with deep stacks.
T
Table Selection
Choosing which specific table to sit at based on the strength of the opponents. In cash games, moving from a tough table to a soft one can double or triple your hourly rate with no improvement in technical skill.
You open the lobby and see two $2/$5 tables running. One has a player with a 62% VPIP over 200 hands. You join that table immediately.
TAG
Tight-Aggressive: a playing style that enters few pots but plays them aggressively with bets and raises. TAG is considered the most fundamentally sound approach, especially for newer players.
A TAG player opens 15% of hands preflop and almost always raises rather than limping. They are selective but assertive.
Tell
A physical or behavioral clue that reveals information about a player's hand strength. Tells can be involuntary (trembling hands, eye movement) or deliberate (false tells designed to mislead).
The player glances at his chips immediately after the flop, a common tell indicating he connected with the board and is planning to bet.
Terminal Node
A point in the game tree where the hand ends: either because a player folds, or because all betting rounds are complete and the hand goes to showdown. Terminal nodes are where payoffs are calculated.
Villain folds to your river bet. That fold creates a terminal node where you win the pot. The solver calculates EV at every terminal node and works backward through the tree.
Thin Value Bet
A value bet made with a hand that is only marginally ahead of the range of hands that will call. Thin value bets extract small amounts from opponents' weaker holdings but risk losing when called by hands that narrowly beat yours. The ability to thin value bet accurately separates good players from great ones.
You bet the river with second pair on a dry board. You expect to be called by third pair and ace-high, which are worse, but occasionally run into top pair. Across 100 similar spots, the bet is +EV even though you lose some of the time.
Three-Bet
The third bet in a sequence: post blind, open-raise, three-bet. In modern usage, a three-bet is a re-raise of an initial raise. Three-betting is essential for isolating opponents and building pots with strong hands.
Your opponent opens to $8, and you three-bet to $24 with A-Q suited from the button.
Tilt
An emotional state where frustration, anger, or other feelings cause a player to make suboptimal decisions. Tilt is one of the biggest bankroll destroyers in poker and managing it is a critical skill.
After losing three big pots in a row, you go on tilt and call an all-in with K-J offsuit. A play you would never make in a clear mental state.
Time Bank
Extra time allotted for complex decisions in online poker. Each player receives a bank of additional seconds they can use when the standard action clock runs out. Time banks prevent rushed decisions on critical hands while keeping the overall pace of play reasonable.
You face an all-in on the river for 2x pot. Your standard 15-second clock runs out and the time bank activates, giving you 30 additional seconds to work through the math.
Time Rake
A rake structure where the casino charges a flat fee per unit of time (typically every 30 minutes) rather than taking a percentage from each pot. Time rake is common in higher-stakes live games and is generally more favorable for players in action-heavy games.
At a $5/$10 game with $10/half-hour time rake, you pay $20/hour regardless of how many pots you play. In a game with lots of large pots, time rake saves you hundreds compared to a percentage rake.
Top Pair
A pair made using one hole card and the highest card on the board. Top pair with a strong kicker is a solid hand on most flops, while top pair with a weak kicker is more vulnerable.
You hold A-J and the flop comes J-8-4. You have top pair, top kicker, a strong holding on this board.
Trips
Three of a kind made using one hole card and two matching cards on the board. Trips are weaker than a set because they are more obvious and more likely to be shared or counterfeited.
You hold A-T and the board shows T-T-6-3-K. You have trip tens with an ace kicker, but your opponent could also hold a ten.
Turbo
A tournament format with faster blind increases than standard speed, typically doubling every 5-8 minutes instead of 10-15. Turbo tournaments require more aggressive play as the window for post-flop poker shrinks quickly.
In a turbo MTT you start with 150BB but by level 8 (45 minutes in) you are down to 20BB from blinds alone. Push-fold ranges kick in much earlier than in a standard-speed event.
Turn
The fourth community card, dealt face-up after the flop betting round. The turn is sometimes called Fourth Street and brings the pot closer to its final size.
The turn brings the king of diamonds, completing your flush draw and giving you the nut flush.
Two Pair
A hand containing two separate pairs, such as K-K-8-8-3. Two pair beats one pair but loses to three of a kind and higher. The strength is determined by the higher pair first.
You hold K-8 on a board of K-8-3-5-J, giving you kings and eights, a strong two-pair hand.
U
Uncapped Range
A range that can contain the strongest possible hands. An uncapped range retains nut combinations, giving that player the ability to represent the best hand at any point. The preflop three-bettor's range is usually uncapped because they would have three-bet their premiums.
You three-bet preflop and the caller flatted. On an A-K-Q board, your range is uncapped: you have all the AA, KK, QQ, AK combos. You can use large sizings and overbets because villain must respect the nuts in your range.
Under the Gun
The seat immediately left of the big blind, which acts first preflop. Under the gun (UTG) is the worst preflop position because every other player acts after you.
You fold Q-J offsuit from under the gun at a 9-handed table. Too many players behind to open this hand profitably.
Upswing
A period of running above expected value, winning more than your long-term average. Upswings are the positive side of variance and can create a false sense of skill improvement.
You ran 8 buy-ins above EV over the last 30K hands. A significant upswing that will eventually correct toward the mean.
V
Value Bet
A bet made with a hand you believe is best, designed to be called by worse hands. The goal of a value bet is to extract the maximum from your opponents when you hold a strong hand.
You bet $35 into a $50 pot on the river with top two pair, expecting calls from one-pair hands and missed draws that paired up.
Variance
The natural statistical swings in poker results caused by the element of luck. Even strong winning players experience extended losing streaks due to variance. Understanding variance is crucial for bankroll management and emotional stability.
Over a 10,000-hand sample at $1/$2, a 5bb/100 winner can easily have a 15-buy-in downswing due to normal variance.
Villain
The opponent in a hand, used when discussing or analyzing hand histories. The term is a counterpart to 'hero' (the player whose perspective is being considered).
Villain opens from the cutoff, hero three-bets from the button with A-K, and villain calls.
VPIP
Voluntarily Put money In Pot: a HUD statistic showing the percentage of hands a player enters the pot with (excluding forced blind posts). VPIP is the most fundamental stat for categorizing player types. A VPIP under 15% is nitty, 20-28% is standard, and 35%+ is loose.
Your HUD shows villain has a VPIP of 45 over 200 hands. They are playing nearly half of all hands dealt to them. This is a recreational player. Adjust accordingly.
W
Wet Board
A community card layout with many possible draws and connected cards. Wet boards produce more action because more hands have equity, leading to larger pots and trickier decisions.
A flop of J-T-9 with two hearts is a very wet board. Straight draws, flush draws, and two-pair combinations are everywhere.
Whale
A very wealthy recreational player who plays at high stakes despite having significant strategic weaknesses. Whales are the most valuable players at any table because they lose large amounts. The term is borrowed from casino jargon.
A whale sits down at the $25/$50 game with $20,000 and starts open-limping every hand. Three regulars immediately request table changes to get a seat.
Win Rate
Your average profit per 100 hands, measured in big blinds (bb/100). Win rate is the standard metric for cash game performance. A solid win rate at online micro stakes is 3-8 bb/100. At live low stakes, 10-20 bb/100 is achievable due to weaker competition. Tournament win rate is typically measured as ROI (return on investment) percentage.
Your database shows a win rate of 4.2bb/100 over 150K hands at $0.50/$1. That translates to about $4.20 per 100 hands, or roughly $25-30/hour at 6 tables.
Wrap
A straight draw with more than eight outs, possible only in Omaha due to the four hole cards. Wraps can have up to 20 outs and are among the most powerful drawing hands in PLO.
In Omaha you hold 8-9-J-Q on a T-7-2 board. You have a 20-out wrap, hitting a straight with any 6, 8, 9, J, or Q.
WTSD% (Went to Showdown)
A HUD statistic showing the percentage of hands where a player goes to showdown after seeing the flop. A typical WTSD% is 25-30%. Higher means the player calls too much; lower means they fold too often. Combined with W$SD% (won money at showdown), it reveals whether a player is a calling station or a well-timed caller.
Villain has a WTSD% of 38 and a W$SD% of 44. They go to showdown way too often and lose more than half the time when they get there. This is a player you value bet relentlessly and never bluff.
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