Breadcrumb Home > Thesaurus > T Synonyms of tonguefish Find synonyms for: Noun 1. tonguefish, tongue-fish, flatfish usage: left-eyed marine flatfish whose tail tapers to a point; of little commercial value WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of tonguefish (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: demagogue Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language