Breadcrumb Home > Thesaurus > K Synonyms of knuckle Find synonyms for: Noun 1. knuckle, knuckle joint, metacarpophalangeal joint, synovial joint, articulatio synovialis, diarthrosis usage: a joint of a finger when the fist is closed Verb 1. knuckle, press usage: press or rub with the knuckles 2. knuckle, shoot usage: shoot a marble while keeping one's knuckles on the ground WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of knuckle (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: hagiography Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language