an electric railway operating below the surface of the ground (usually in a city)
<noun.artifact> freq. cnt.: 4 freq. cnt.: 3 freq. cnt.: 1
<noun.artifact> freq. cnt.: 4 freq. cnt.: 3 freq. cnt.: 1
metro |
subway |
subway system |
tube |
underground |
sample sentences
"in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"
semantic pointers
hypernym