1. (acronym) .  angiotensin converting enzyme.
  2. (acronym) .  American Cinema Editors, or designating a member of this society.
  3. (acronym) .  (military) (NATO) air combat element.
  4. (acronym) .  analysis and control element.
  5. (acronym) .  (military) (USMC) aviation combat element.
  6. (acronym) .  American Council on Education.
  7. (acronym) .  Advanced Composition Explorer - a NASA spacecraft.
  8. Proper noun.  (given name, male) .
  9. Proper noun.  A common nickname suggesting skill, particularly among airplane pilots.
  10. Noun.  A single point or spot on a playing card or die.
  11. Noun.  A card or die face so marked.
  12. Noun.  A very small quantity or degree; a particle; an atom; a jot.
  13. Noun.  (tennis) A serve won without the opponent hitting the ball.
  14. Noun.  (baseball) The best pitcher on the team.
  15. Noun.  (baseball, dated) A run.
  16. Noun.  (golf) A hole in one.
  17. Noun.  An expert at something.
  18. Noun.  A military aircraft pilot who is credited with shooting down five or more enemy aircraft.
  19. Noun.  A perfect score on a school exam.
  20. Verb.  To pass (a test, interviews etc.) perfectly.
  21. Verb.  (tennis) To win a point by an ace.
  22. Verb.  (golf) To make an ace (hole in one).
  23. Adjective.  (UK, slang) Excellent.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.