underground railway

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underground railway (plural underground railways)

  1. (rail transport) Synonym of subway: a railway under the ground.
    • 2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 29:
      It was advisable to avoid building an underground railway beneath private houses at the time, because the law would require you to buy those houses.

Derived terms[edit]

Proper noun[edit]

underground railway

  1. (usually capitalized) Alternative form of Underground Railroad

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