/ Thesaurus / J Synonyms of jack dempsey Find synonyms for: Noun1. Dempsey, Jack Dempsey, William Harrison Dempsey, Manassa Maulerusage: United States prizefighter who was world heavyweight champion (1895-1983)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language