jackpot Meaning, Definition & Usage

  1. noun the cumulative amount involved in a game (such as poker)
    pot; kitty.
  2. noun any outstanding award

WordNet

Jackpot
Definitions
  1. (a) See "jack pot" under jack; (b) any larger-than-usual gambling prize formed by the accumulation of unwon bets[=MW10 1(a)(2) and 1(c)]; (c) the highest gambling prize awarded in a gambling game in which smaller prizes are also awarded, especially such a prize on a slot machine.
  2. (a) An unusually large success in an enterprise, either unexpected or unpredictable, esp. one providing a great financial benefit.

Webster 1913