/ Dictionary / Index S sewan: Meaning and Definition of Find definitions for: se•wan Pronunciation: (sē'wun), [key] — n. seawan. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sewall Seward Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language