A jackpot refers to the top prize in a game or contest, such as a lottery, that typically involves a large sum of money. It can also be the largest prize in a competition or game. In addition to its monetary meaning, jackpot can also refer to an impressive and unexpected success or reward. The term can also be used in the context of a card game played with partners, where players secretly communicate to indicate that they have collected four of the same card. Furthermore, in the context of pinball, jackpot refers to a large accumulated point bonus.