What is the meaning of the word "tube"?
Definitions:
-
an electric railway operating below the surface of the ground (usually in a city)
noun
- in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'
- in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'
-
convey in a tube verb
- inside Paris, they used to tube mail
- inside Paris, they used to tube mail
-
ride or float on an inflated tube verb
- We tubed down the river on a hot summer day
- We tubed down the river on a hot summer day