01 n. Two; a card or a die with two spots; as, the deuce of hearts.
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1.
Two; a card or a die with two spots; as, the deuce of hearts.(Gaming)
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2.
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.(Tennis)