Breadcrumb Home > Thesaurus > W Synonyms of waistline Find synonyms for: Noun1. waist, waistline, area, regionusage: the narrowing of the body between the ribs and hipsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of waistline (Dictionary) ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language