/ Thesaurus / R Synonyms of roof mushroom Find synonyms for: Noun1. Pluteus, genus Pluteus, roof mushroom, fungus genususage: a large genus of fungi belonging to the family Pluteaceae; the shape of the cap resembles a roof; often abundant early in the summerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language