/ Thesaurus / M Synonyms of modus operandi Find synonyms for: Noun1. routine, modus operandi, procedure, processusage: an unvarying or habitual method or procedureWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language