metro

Definition of Metro in English :

an electric railway operating below the surface of the ground (usually in a city)

Example Sentences:
'in Paris the subway system is called the metro' and in London it is called the tube' or the underground''

WordNet Lexical Database for English. Princeton University. 2010.

Metro

noun plural -ros

an underground, or largely underground, railway system in certain cities, esp in Europe, such as that in Paris

adjective

1.

metropolitan

nounWord forms: plural ˈmetros

2. [often M-]

a metropolitan government

nounWord forms: plural ˈmetros

[often M-]

a subway (sense 2)

pref.

Uterus: metritis.