/ Thesaurus / O Synonyms of old world crayfish Find synonyms for: Noun1. Old World crayfish, ecrevisse, crayfish, crawfish, crawdad, crawdaddyusage: small crayfish of Europe and Asia and western North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language