Definition of "subway train" []

• A train that runs in a subway system (noun)

WordNet. Princeton University. 2010.

• "One might argue that in a city like Boston, where there are plenty of carriages for hire, and autotaxis, and even a subway train that runs underground, one does not need one's own horse and carriage."
• "Every morning they took the Q26 bus and the No. 7 subway train to the 6 train to Canal Street, where my grandfather worked in a fortune-cookie factory and my grandmother was a seamstress."