/ Thesaurus / S Synonyms of safety lock Find synonyms for: Noun1. safety catch, safety lock, guard, safety, safety deviceusage: guard consisting of a locking device that prevents a weapon from being fired2. safety bolt, safety lock, bolt, deadboltusage: a bolt that cannot be moved from outside the door or gateWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language