/ Thesaurus / K Synonyms of knuckles Find synonyms for: Noun1. brass knucks, knucks, brass knuckles, knuckles, knuckle duster, weapon, arm, weapon systemusage: a small metal weapon; worn over the knuckles on the back of the handNoun1. brass knucks, knucks, brass knuckles, knuckles, knuckle duster, weapon, arm, weapon systemusage: a joint of a finger when the fist is closedVerb1. knuckle, pressusage: press or rub with the knuckles2. knuckle, shootusage: shoot a marble while keeping one's knuckles on the groundWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language