/ Dictionary / Index S Seine-St-Denis: Meaning and Definition of Find definitions for: Seine-St-De•nis Pronunciation: (sen-san-du-nē'), [key] — n. a department in N France. 1,322,127; 91 sq. mi. (236 sq. km). Cap.: Bobigny. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. seiner Seirios Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language