/ Thesaurus / C Synonyms of closed curve Find synonyms for: Noun1. closed curve, curve, curved shapeusage: a curve (such as a circle) having no endpointsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language