/ Dictionary / Index O overtire: Meaning and Definition of Find definitions for: o•ver•tire Pronunciation: (ō"vur-tīr'), [key] — -tired, -tir•ing. to tire to the point of exhaustion; tire out. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: overtire (Thesaurus) overtime overtly Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language