subway
n. 1 pedestrian tunnel beneath a road etc. 2 esp. Us underground railway.
n. An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted.
n. 1 pedestrian tunnel beneath a road etc. 2 esp. Us underground railway.
n. An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted.