/ Thesaurus / L Synonyms of lower jaw Find synonyms for: Noun1. lower jaw, mandible, mandibula, mandibular bone, submaxilla, lower jawbone, jawbone, jowl, jaw, articulatorusage: the jaw in vertebrates that is hinged to open the mouthWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language