/ Dictionary / Index S Sumter: Meaning and Definition of Find definitions for: Sum•ter Pronunciation: (sum'tur, sump'-), [key] — n. a city in central South Carolina. 24,890. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sumptuous sum total 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