Etymology: Latin sub "under" + way
- (italbrac, North American) underground railway.
- (italbrac, New York City, New York, USA) The proper name of the Heavy Rail transit system - regardless of elevation.
- (italbrac, Newark, New Jersey, USA) The proper name of the Light Rail transit system
- (British) underground walkway, tunnel for pedestrians. (In the USA, this definition applies to pedestrian underpass.)
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Full Definition of subway