Breadcrumb Home > Thesaurus > W Synonyms of whiten Find synonyms for: Verb1. whiten, white, discolor, discolour, colour, colorusage: turn white; "This detergent will whiten your laundry"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of whiten (Dictionary) ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language