/ Dictionary / Index T triable: Meaning and Definition of Find definitions for: tri•a•ble Pronunciation: (trī'u-bul), [key] subject or liable to judicial trial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tri- triac Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language