Chain  —n. 1 a connected flexible series of esp. Metal links. B thing resembling this. 2 (in pl.) Fetters; restraining force. 3 sequence, series, or set. 4 group of associated hotels, shops, etc. 5 badge of office in the form of a chain worn round the neck. 6 unit of length (66 ft). —v. (often foll. By up) secure or confine with a chain. [latin catena]