/ Dictionary / Index S straighten: Meaning and Definition of Find definitions for: straight•en Pronunciation: (strāt'n), [key] — v.t., v.i. to make or become straight in direction, form, position, character, conduct, condition, etc. (often fol. by up or out). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: straighten (Thesaurus) straightedge straight face Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language