/ Thesaurus / C Synonyms of crawl space Find synonyms for: Noun1. crawlspace, crawl space, spaceusage: low space beneath a floor of a building; gives workers access to wiring or plumbingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language