Poker Math That Matters

Rake: The percent the casino takes from a pot.
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Range: A group of hands. For example, sometimes you'll hear a
player say, "I put him on AK." AK is just a single hand. Good
players tend to work with a range of hands. So, instead they may
say, "I think he can have hands like TT, 67s and AK."
Reraise: A raise after someone else has raised.
Semi-bluff: A hand which is probably not the best hand right
now but has a good chance to improve to the best hand.
Session: How poker players refer to a given period of time
(usually one sitting) where they played poker.
Set: Having a pair as your hole cards and a matching rank on the
flop.
Set-mining: Calling preflop with a pocket pair with the idea of
either catching a set or folding to any aggression from your
opponent.
Shove: See "Push".
Showdown: The end of a poker hand where it’s determined who
has the best hand.
Showdown Equity: The amount of equity a player has if all the
community cards were dealt without any further betting.
Slowplay: To check or simply call an opponent’s bet instead of
betting or raising with the idea of winning more money on later
streets.
Stack: The amount of money a player has left to be wagered.
Stack to pot ratio: The size of the pot in relation to the effective
stack.