/ Dictionary / Index T Thira: Meaning and Definition of Find definitions for: Thi•ra Pronunciation: (thēr'u Gk. thē'rä), [key] — n. Thera. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thir thiram Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language