Definition from Wiktionary, the free dictionary
- (chiefly Britain) A railway track; a pair of rails on which a railway train runs.
- (chiefly Britain) 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).
- (chiefly Britain) An organization that runs a railroad.
- (all senses): railroad line (US)