/ Thesaurus / B Synonyms of bluefin Find synonyms for: Noun1. bluefin, bluefin tuna, tuna, tuna fish, tunnyusage: flesh of very large tuna2. bluefin, bluefin tuna, horse mackerel, Thunnus thynnus, tuna, tunnyusage: largest tuna; to 1500 pounds; of mostly temperate seas: feed in polar regions but breed in tropicsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language