/ Dictionary / Index W widen: Meaning and Definition of Find definitions for: wid•en Pronunciation: (wīd'n), [key] — v.t., v.i. to make or become wide or wider; broaden; expand. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: widen (Thesaurus) widemouthed wide-open Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language