a railway gun

(US) Any railway vehicle or rolling stock.

(historical) The Pre-American Civil War anti-slavery resistance movement dedicated to assisting escaped slaves in reaching safe territory.

(rail transport, US) A heavy, preserved piece of hewn timber laid crossways to and supporting the rails of a railroad or a member of similar shape and function of another material such as concrete.

(US) A chassis or framework-like structure underneath a railroad car to which wheel axles (and, hence, wheels) are attached through bearings. (Not to be confused with railway truck or railtruck, which are British English synonyms of railroad car)

(rail transport, US) A pair of formed steel rails, separated and supported usually on wooden or concrete ties or sleepers, forming a track along which flange-wheeled railroad vehicles may travel.

plural of railroad station

(US) A place where trains stop for passengers to embark and disembark.

A larva or larviform female adult of a beetle of the genus Phrixothrix, characterized by two different colours of bioluminescence, red and green, like railroad signals.

plural of railroad truck