/ Thesaurus / W Synonyms of washing day Find synonyms for: Noun1. washday, washing day, dayusage: a day set aside for doing household laundryWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tranquil Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language