A track, consisting of parallel rails, over which wheeled vehicles such as trains may travel.
A transport system using rails used to move passengers or goods.
A group of railway tracks running parallel, allowing one track to be used for each direction (a double-track railway line), or allowing segregation of fast trains from stopping trains (a four-track railway line).
A railway track; a pair of rails on which a railway train runs.
An organization that runs a railroad.