/ Thesaurus / R Synonyms of rachycentron Find synonyms for: Noun1. Rachycentron, genus Rachycentron, fish genususage: genus and family are coextensive and comprise only the cobiaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language