All-In: To wager all chips while betting or calling.
Burn: Discarding the top card from the deck, face down, before putting out the next community card(s) as a security against players closest to the dealer from seeing the next card.
Button: A white disk marker (or dealer button) used to signify the "dealer" that travels clockwise around the table in front of a new player with each new hand. This is important because the mandatory blinds and betting action come from the two players to the left of the dealer. Also signifies the player "on the button." The "dealer" is the last person to act in a round of betting, the most advantageous spot at the table, which is why the button is used to determine which player that will be for every hand.
Blind: Instead of antes, community poker games like Texas Hold 'Em, use forced blinds paid by two players every hand to ensure a minimum pot to seed the action before any cards are dealt. Blind players change every hand as the dealer button is moved around the table.
Small Blind: Automatic bet from the player in between the Big Blind and the dealer button that is usually half that of the Big Blind. When the button is moved to the left on the next hand, the Big Blind now becomes the Small Blind and the Small Blind becomes the dealer. The person to the right of the Big Blind is now the Big Blind.
Big Blind: Automatic bet from the player two spots to the left of the dealer button that is twice the small blind.
Hole Cards: Cards dealt face down to each player to start play. Also "pocket" cards - cards a player holds that only that player can see.
Pocket Pair: In the starting hand - the hole cards - where both cards are the same, making a pair.
Community Cards: Cards that are shared among players and presented face up in the middle of the poker table.
Flop: The first three of five community cards dealt face up at the same time after the first round of betting.
Turn: The fourth community card, dealt face up by itself, followed by another round of betting.
River: The fifth and final community card, dealt face up by itself, followed by another round of betting.
Board: All five face-up community cards - the flop (3), turn (1) and river (1) cards - in a hold 'em game. Players use their first two "hole" cards and five community cards to make their best five-card hand.
Kicker: An unpaired card important for determining a winner of two near-equal hands. For example, if you and your opponent have two Aces, the player with the next highest card wins. If you share that too, the fourth card is used to determine a winner. If that is also the same, the fifth card is used. If all five cards are of equal value, both players share the pot.
Suited - A starting hand where the two cards are the same suit. Example: Queen, 10 of spades.
Offsuit - A starting hand where the two cards are different suits. Example: Queen of hearts, 10 of clubs.
Connector - A starting hand where the two cards are consecutive. Example: King, Queen of different suits.
Suited Connector - A starting hand where the two cards are consecutive and the same suit: King, Queen of hearts.
Top Pair - A pair made with the highest card on the flop. A player holds Ace, King and the flop comes King, 3, 2. That player flopped top pair.
Second Pair - A pair made with the second-highest card on the flop. A player holds King, Jack and the flop comes Ace, Jack, 10. That player flopped second pair.
Bottom Pair - A pair made with the lowest card on the flop. A player holds Ace, 9 and the flop comes King, Jack, 9. That player flopped bottom pair.
Overpair - A pocket pair that is higher than any card on the flop. A player holds King, King and the flop comes Jack, 4, 2. That player has an overpair.
Overcard - A card higher than any card on the board. A player holds King, Jack and the flop comes 10, 7, 2. The player didn't make a pair but they hold two overcards.