n. 1. a. A playing card having two spots or the side of a die bearing two pips. b. A cast of dice totaling two. 2. A tied score in tennis in which each player or side has 40 points, or 5 or more games, and one player or side must win 2 successive points to win the game, or 2 successive games to win the set. tr.v. deuced, deuc·ing, deuc·es To make the score of (a tennis game or set) deuce. [Middle English deus, from Old French, two, from Latin duōs, masculine accusative of duo; see dwo- in the Appendix of Indo-European roots.] |
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