Search Result for "subway system":
Wordnet 3.0

NOUN (1)

1. an electric railway operating below the surface of the ground (usually in a city);
- Example: "in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"
[syn: metro, tube, underground, subway system, subway]



WordNet (r) 3.0 (2006):

subway system
    n 1: an electric railway operating below the surface of the
         ground (usually in a city); "in Paris the subway system is
         called the `metro' and in London it is called the `tube' or
         the `underground'" [syn: metro, tube, underground,
         subway system, subway]