/ Dictionary / Index O one-time: Meaning and Definition of Find definitions for: one-time Pronunciation: (wun'tīm"), [key] — adj. having been as specified at one time; former: my one-time partners. occurring, done, or accomplished only once: his one-time try at elective office. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: one-time (Thesaurus) one-suiter one-to-one Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language