/ Thesaurus / S Synonyms of sponge bath Find synonyms for: Noun1. sponge bath, washup, bathingusage: you wash your body with a sponge or washcloth instead of in a bathtubWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language