/ Dictionary / Index T Tigris: Meaning and Definition of Find definitions for: Ti•gris Pronunciation: (tī'gris), [key] — n. a river in SW Asia, flowing SE from SE Turkey through Iraq, joining the Euphrates to form the Shatt-al-Arab. 1150 mi. (1850 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tigris (Thesaurus) Tigrinya tigrish Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language