/ Thesaurus / B Synonyms of broom closet Find synonyms for: Noun1. broom closet, cupboard, closetusage: a small room for storing brooms and other cleaning equipmentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: quince Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language