Breadcrumb Home > Thesaurus > I Synonyms of ism Find synonyms for: Noun 1. doctrine, philosophy, philosophical system, school of thought, ism, belief usage: a belief (or system of beliefs) accepted as authoritative by some group or school WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ism (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. The Book of 1 Corinthians: Summary Current Events This Week: June 2023 Languages Spoken in Each Country of the World Aesop's Fables: Aesop's Fables Milestones in Environmental Protection The 12 Labors of Hercules (In Order) ✖ Related Content Daily Word Quiz: pusillanimous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language