/ Dictionary / Index S Somme: Meaning and Definition of Find definitions for: Somme Pronunciation: (sôm), [key] — n. a river in N France, flowing NW to the English Channel: battles, World War I, 1916, 1918; World War II, 1944. 150 mi. (241 km) long. a department in N France. 538,462; 2424 sq. mi. (6280 sq. km). Cap.: Amiens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: somme (Thesaurus) somite sommelier Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language