metro

A rapid transit rail transport system, or a train in such systems, generally underground and serving a metropolitan area.

He is going to the stadium by metro.

Recalling that Davide Lungo returned the van at the airport, Pizo descended the nearby stairs to the underground metro, and boarded the next metro stopping there.

An urban rapid transit rail transport system, normally with lighter track and light trains (i.e. an S-Bahn or similar), or a train in such systems.

Informs how long the passenger has to wait for the next metro

With the weather clear and warm for a change, I decided to catch the next metro to the outskirts of town by myself.

A metropolitan area.

In an age of persistently high inequality, work in high-cost metros catering to the whims of the wealthy—grooming them, stretching them, feeding them, driving them—has become one of the fastest-growing industries. […] Relationships between the classes, once mediated through the household, are now managed through an app that serves a large metro area.

metropolitan