gold mine

See also: goldmine

English

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Noun

gold mine (plural gold mines)

  1. A mine for gold ore or metal.
    South Africa has many goldmines.
  2. (idiomatic) A very profitable economic venture.
    This oil deposit is a regular gold mine. We make more and more money every year!
    • 1939 December, John D. Hewitt, “Some Notable British Main Lines: II. Salisbury and Exeter, S.R.”, in Railway Magazine, page 407:
      The possessors of Salisbury & Yeovil Railway shares had ample compensation for the anxiety which the first few years of the company's existence had given them, for the concern proved a veritable gold mine.
    • 2019, Rana Foroohar, Don't Be Evil: The Case Against Big Tech‎, Penguin UK, →ISBN:
      [Hal Varian] went to work helping Page, Brin, and Schmidt develop more efficient auction algorithms and build the auction model that became such a gold mine for Google.
  3. (idiomatic) A plentiful stockpile of something sought after.
    The Smithsonian Institute is a goldmine of knowledge, but like most mines, you have to dig for the good stuff.

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