/ Thesaurus / B Synonyms of breathalyze Find synonyms for: Verb1. breathalyze, breathalyse, checkusage: test someone's alcohol level in his blood by means of a breathalyzerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sumptuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language