two-piece I. \ˈ ̷ ̷| ̷ ̷\adjective Etymology:two (I) + piece : consisting of two separate pieces; especially: forming a clothing ensemble with matching but separate top and bottom parts (as jacket and skirt, halter and shorts) < a two-piece dress > < a two-piece playsuit > II. noun ortwo-piec·er\ˈ ̷ ̷ˈpēsə(r)\ : a garment or ensemble consisting of a matching but separate top and bottom