/ Thesaurus / B Synonyms of blue catfish Find synonyms for: Noun1. blue catfish, blue cat, blue channel catfish, blue channel cat, channel catfish, channel cat, Ictalurus punctatususage: a large catfish of the Mississippi valleyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language