n. The devil: used, with or without the definite article, chiefly in exclamatory or interjectional phrases, expressing surprise, impatience, or emphasis: as, deuce take you! go to the deuce! the deuce you did!n. In cards and other games, two; a card or die with two spots.n. In lawn-tennis, a stage of the game in which both players or sides have scored 40, and one must score 2, or, if the other has vantage, 3 points in succession in order to win the game.