underground
noun/ˈʌndəɡraʊnd/
/ˈʌndərɡraʊnd/
- (often the Underground)(British English)(North American English subway)[singular] an underground railway system in a city
- underground stations
- the London Underground
- I always travel by underground.
British/American underground / subway / metro / tubeunderground / subway / metro / tubecompare metro, tube- A city’s underground railway system is usually called the underground (often the Underground) in British English and the subway in North American English. Speakers of British English also use subway for systems in American cities and metro for systems in other European countries. The Metro is the name for the systems in Paris and Washington, D.C. London’s system is often called the Tube.
Extra ExamplesTopics Transport by bus and traina2- I always seem to get lost in the underground.
- I often travel on the underground.
- It brought the whole underground system to a halt.
Oxford Collocations Dictionaryverb + underground- go by
- go on
- take
- …
- station
- train
- tunnel
- …
- in the underground
- on the underground
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- the underground[singular + singular or plural verb] a secret political organization, usually working against the government of a country
- The underground was/were determined to resist.
- (Indian English) a person who works against the government as a member of a secret political organization
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underground