(n.) A four-wheeled truck running on rails, and used in a mine, as for carrying coal or ore.
(n.) The shaft of a cart.
(n.) One of the rails of a tramway.
(n.) A car on a horse railroad.
(n.) A silk thread formed of two or more threads twisted together, used especially for the weft, or cross threads, of the best quality of velvets and silk goods.