/ Thesaurus / E Synonyms of established church Find synonyms for: Noun1. established church, religion, faith, organized religionusage: the church that is recognized as the official church of a nationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language