A rail which can be held, such as on the side of a staircase, ramp or other walkway, and serving as a support or guard.
A moving continuous belt-like rail on either side of an escalator which users can hold on to for support.
A railway track; a pair of rails on which a railway train runs.
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).
An organization that runs a railroad.