/ Dictionary / Index T trilingual: Meaning and Definition of Find definitions for: tri•lin•gual Pronunciation: (trī-ling'gwulor, Can.,-ling'gy-ul), [key] — adj. using, speaking, or involving three languages. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trilingual (Thesaurus) trilinear triliteral Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language