disc

Universal Words (also disk especially in AmE) noun 1 a thin flat circular object: He wears an identity disc around his neck. 2 = CD: This recording is available on disc or cassette. 3 (BrE, rare) a disk for a computer 4 (old-fashioned) = RECORD(2) 5 one of the layers of CARTILAGE between the bones of the back: He's been off work with a slipped disc (= one that has moved from its correct position, causing pain).