CUSP /kʌsp/ ► audio Scrabble 8 Words With Friends 11 Definition noun point formed by two intersecting arcs (as from the intrados of a Gothic arch). noun a thin triangular flap of a heart valve. — synonyms: leaflet noun small elevation on the grinding surface of a tooth. Anagrams of CUSP cupsscup See all 9 words you can make from CUSP → 4-letter words Words starting with C Words ending with P ← Unscramble different letters