/ Dictionary / Index T trier: Meaning and Definition of Find definitions for: tri•er Pronunciation: (trī'ur), [key] — n. a person or thing that tries or tests; tester. Trier Pronunciation: (trēr), [key] a city in W Germany, on the Moselle River: extensive Roman ruins; cathedral. 93,472. Also calledFrench, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trier (Thesaurus) triens trierarch Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language