/ Dictionary / Index T tenacity: Meaning and Definition of Find definitions for: te•nac•i•ty Pronunciation: (tu-nas'i-tē), [key] — n. the quality or property of being tenacious. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tenacity (Thesaurus) tenacious tenaculum Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language