noun
Definition: A situation in a card game, especially bridge, where a player makes a bid that is higher than the previous bid, or an additional amount of money requested in a financial context.
Example: In bridge, an overcall can change the dynamics of the game significantly.
transitive verb
Definition: To make a higher bid than someone else in a card game.
Example: In the last round, she decided to overcall her opponent's bid to increase her chances of winning.