Breadcrumb Home > Thesaurus > U Synonyms of unlock Find synonyms for: Verb 1. unlock, open, open up usage: open the lock of; "unlock the door" 2. unlock, disengage, withdraw usage: set free or release 3. unlock, disengage usage: become unlocked; "The door unlocked from the inside" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of unlock (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: supererogatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language