/ Thesaurus / L Synonyms of lutra Find synonyms for: Noun1. Lutra, genus Lutra, mammal genususage: in some classifications considered a genus of the subfamily LutrinaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language