/ Dictionary / Index O overexert: Meaning and Definition of Find definitions for: o•ver•ex•ert Pronunciation: (ō"vur-ig-zûrt'), [key] — v.t. to exert excessively. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: overexert (Thesaurus) overexcite overexpose Related Content Daily Word Quiz: meritocracy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language