Breadcrumb Home > Dictionary > Index W washup: Meaning and Definition of Find definitions for: wash•up Pronunciation: (wosh'up", wôsh'-), [key] — n. an act of washing: Allow five minutes for washup. a place, as a bathroom, for washing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: washup (Thesaurus) washtub washwoman ✖ Related Content Daily Word Quiz: glissade Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language