Breadcrumb Home > Thesaurus > W Synonyms of working rule Find synonyms for: Noun1. working principle, working rule, rule, regulationusage: a rule that is adequate to permit work to be doneWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language