/ Dictionary / Index S Sumba: Meaning and Definition of Find definitions for: Sum•ba Pronunciation: (sm'bä), [key] — n. one of the Lesser Sunda Islands, in Indonesia, S of Flores. 4306 sq. mi. (11,153 sq. km). Also calledDutch, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sumatra camphor Sumbawa 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