- Clothing. consisting of three matching or harmonious pieces, as an ensemble of coat, skirt, and blouse for a woman or a suit of a jacket, vest, and pair of trousers for a man.
- having three parts.
- a three-piece ensemble or suit.Compare coordinate(def 7).
- having three pieces, esp (of a suit, suite, etc) consisting of three matching parts
- a three-piece suite, suit, etc