subway Meaning, Definition & Usage

  1. noun an electric railway operating below the surface of the ground (usually in a city)
    underground; tube; subway system; metro.
    • in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'
  2. noun an underground tunnel or passage enabling pedestrians to cross a road or railway
    underpass.

WordNet


Sub"way` noun
Definitions
  1. An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted.

Webster 1913