noun the devil; a demon.
2. deuce ·noun two; a card or a die with two spots; as, the deuce of hearts.
3. deuce ·noun a condition of the score beginning whenever each side has won three strokes in the same game (also reckoned "40 all"), and reverted to as often as a tie is made until one of the sides secures two successive strokes following a tie or deuce, which decides the game.