- ace
- ace [ās]n.[ME as, aas < L as, unit, unity, AS2]1. a playing card, domino, etc. marked with one large, centered pip2. Racket Sports Handballa) a score made by a serve that one's opponent fails to touchb) such a serve3. Golf the act of hitting the ball so that it goes into the hole on the drive; hole in one4. a combat pilot who has destroyed at least five enemy planes5. an expert in any activityadj.Informal first-rate; expert [an ace salesman]vt.aced, acing1. to score an ace against, as in tennis2. to make an ace on (a particular hole) in golf3. Slang to defeat completely; get the best of: often with out☆ 4. Informal to do very well, esp., by earning a grade of A, in, on, etc. [she aced the course]——————within an ace ofon the verge of; very close to
English World dictionary. V. Neufeldt. 2014.