Breadcrumb Home > Thesaurus > W Synonyms of watch out Find synonyms for: Verb1. watch, look out, watch outusage: be vigilant, be on the lookout or be careful; "Watch out for pickpockets!"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language