Breadcrumb Home > Dictionary > Index K knuckle-duster: Meaning and Definition of Find definitions for: knuck•le-dust•er Pronunciation: (nuk'ul-dus"tur), [key] — n. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: knuckle-duster (Thesaurus) knucklebone knucklehead TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census 50 Spookiest Halloween Quotes Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: panoply Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language