- ace
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/ays/, n., v., aced, acing, adj.n.1. a playing card or die marked with or having the value indicated by a single spot: He dealt me four aces in the first hand.2. a single spot or mark on a playing card or die.b. any placement.c. a serve that the opponent fails to touch.d. the point thus scored.4. a fighter pilot credited with destroying a prescribed number or more of enemy aircraft, usually five, in combat.5. a very skilled person; expert; adept: an ace at tap dancing.6. Slang. a one-dollar bill.7. Slang. a close friend.8. Golf.a. Also called hole in one. a shot in which the ball is driven from the tee into the hole in one stroke: He hit a 225-yard ace on the first hole.b. a score of one stroke made on such a shot: to card an ace.9. Slang. a barbiturate or amphetamine capsule or pill.10. a very small quantity, amount, or degree; a particle: not worth an ace.11. Slang. a grade of A; the highest grade or score.12. ace up one's sleeve, an important, effective, or decisive argument, resource, or advantage kept in reserve until needed.15. within an ace of, within a narrow margin of; close to: He came within an ace of winning.v.t.17. Golf. to make an ace on (a hole).18. Slang. to cheat, defraud, or take advantage of (often fol. by out): to be aced out of one's inheritance; a friend who aced me out of a good job.19. Slang.b. to complete easily and successfully: He aced every physical fitness test they gave him.20. ace it, Slang. to accomplish something with complete success: a champion who could ace it every time.adj.21. excellent; first-rate; outstanding.[1250-1300; 1915 for def. 4; ME as, aas < OF as < L: a unit; cf. AS2; sense 4 after F as in World War I; sense 5 < 4]
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Universalium. 2010.