/ Dictionary / Index S sharpen: Meaning and Definition of Find definitions for: sharp•en Pronunciation: (shär'pun), [key] — v.t., v.i. to make or become sharp or sharper. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sharpen (Thesaurus) Shar-Pei sharper Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language