/ Dictionary / Index W whiten: Meaning and Definition of Find definitions for: whit•en Pronunciation: (hwīt'n, wīt'n), [key] — v.t., v.i. to make or become white. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: whiten (Thesaurus) white mustard whitener Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language