/ Dictionary / Index S surplusage: Meaning and Definition of Find definitions for: sur•plus•age Pronunciation: (sûr'plus-ij), [key] — n. something that is surplus; an excess amount. an excess of words. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: surplusage (Thesaurus) surplus surplus value Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language