1) Money placed in the pot before the hand is begun.
2) The player to the left of the dealer, usually in an ante and straddle game.
An ante is not part of a player's next bet, as opposed to a blind, which usually is. All of the antes in a particular pot, taken as a whole; usually preceded by the. "Nobody else had openers when I had aces full, and all I won was the ante." Put an ante into a pot. "Someone's light in this pot; did you ante, Andy?"