In poker game rooms, all the live players place a bet into a communal pot during the playing of a poker hand. At the end of the bet, the player who holds the best poker hand wins all the money in the pot. During each round of betting, each poker player can do any of the following: check, bet, call, or fold.
A check is a bet equal to zero that does not give up a player’s claim to the pot.
A bet also called a raise is a bet that is larger than all the other bets placed previously. All succeeding bets must be higher than this or else the players give up their claim to the pot.
A call is a bet that is equal to the bet that came before and allows the player to maintain his claim to the pot. Finally, a fold is an action that signifies a player giving up his claim to the pot. The player then loses all of his cards, as well as all his previous bets.
The above actions apply to virtually all forms of poker room games, although many poker games played at home or more informal settings freely modify these rules according to the players preferences.