Breadcrumb Home > Thesaurus Cite Synonyms of cusp Find synonyms for: Noun1. cusp, pointusage: point formed by two intersecting arcs (as from the intrados of a Gothic arch)2. cusp, leaflet, flapusage: a thin triangular flap of a heart valve3. cusp, point, tip, peakusage: small elevation on the grinding surface of a toothWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: cusp (Dictionary) Related Content Daily Word Quiz: parallax Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index