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underground

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adverb British English pronunciation: underground /ˌʌndə(r)ˈɡraʊnd/

Related dictionary definitions

  1. 1
    below the surface of the ground

    miners who work all day underground

    Many species of beetle live underground.

  2. 2
    in or to a secret place away from the police or other authorities

    Left-wing activists were driven underground after the coup.

    go underground:

    The police became suspicious and he had to go underground.

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