sub‧way /ˈsʌbweɪ/ noun [countable]
[Word Family: noun: way, subway; adverb: midway, way; adjective: midway]

1. American English a railway system that runs under the ground below a big city Synonym : underground British English:
the New York City subway
a crowded subway station
Boston has the oldest subway system in the US.

2. British English a path for people to walk under a road or railway Synonym : underpass

[TahlilGaran] Dictionary of Contemporary English ▲

subway
noun
ADJ. pedestrian
VERB + SUBWAY take, use
PREP. along a/the ~, in a/the ~, through a/the ~ He ran through the pedestrian subway.

[TahlilGaran] Collocations Dictionary ▲

the subway American English the railway system that runs under the ground below a big city. British people use the underground when talking about the railway system in London, and many systems outside the US:
the New York subway
We got on the next subway train.
the underground British English the railway system that runs under the ground below a big city:
the London underground
an underground map
It’s quickest to travel by underground.
the tube British English informal the railway system that runs under London:
We took the tube to Trafalgar Square.
a crowded tube train
the metro used especially to talk about the railway system that runs under Paris. Also used about some other city's systems, for example Moscow, Washington DC and Newcastle:
the Paris Metro
Moscow’s metro stations

[TahlilGaran] English Thesaurus ▲