/ ˈsʌbweɪ; NAmE / noun
1.
( NAmE ) an underground railway / railroad system in a city :
the New York subway
a subway station / train
a downtown subway stop
to ride / take the subway
➡ note at underground
2.
( BrE ) a path that goes under a road, etc. which people can use to cross to the other side
SYN underpass