underground railway

See also: Underground Railway

English

Noun

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

• underground (as subway)

Proper noun

underground railway

1. (usually capitalized) Alternative form of Underground Railroad