/ Dictionary / Index A A-OK: Meaning and Definition of Find definitions for: A-OK Pronunciation: (ā'ō-kā'), [key] — adj., adv. OK; perfect: an A-OK rocket launching. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: a-ok (Thesaurus) aoi Aoki Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language