/ Thesaurus / C Synonyms of church mouse Find synonyms for: Noun1. church mouseusage: a fictional mouse created by Lewis CarrollWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language