(1):
(n.) The devil; a demon.
(2):
(n.) Two; a card or a die with two spots; as, the deuce of hearts.
(3):
(n.) 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.