(1):
(n.) A narrow cart that is pushed by hand or drawn by an animal.
(2):
(n.) A truck which travels along the fixed conductors, and forms a means of connection between them and a railway car.
(3):
(n.) A form of truck which can be tilted, for carrying railroad materials, or the like.
(4):
(n.) A truck from which the load is suspended in some kinds of cranes.