n. | 1. | An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted. |
2. | An underground railroad, usually having trains powered by electricity provided by an electric line running through the underground tunnel. It is usually confined to the center portion of cities; - called also |
Noun | 1. | ![]() |
2. | subway - an underground tunnel or passage enabling pedestrians to cross a road or railway Synonyms: underpass |