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gold mine

a mine yielding gold.
a source of great wealth or profit, or any desirable thing.
a copious source or reserve of something required:
a gold mine of information about antiques.
Origin of gold mine
late Middle English
1425-75; late Middle English Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for gold mine
  • If hydrogen fuel cells are the power source of the future, pee is a potential gold mine.
  • In the short term, this is a potential gold mine for foreign-affairs scholarship.
  • At the same time, the company also digs into a gold mine unique to this picturesque city.
  • The current crisis in the retail business has made his work a gold mine.
  • Cell phone companies are finding that they're sitting on a gold mine--in the form of the call records of their subscribers.
  • If shopping was an emotional minefield, then strategic marketing could be a gold mine for companies.
  • The complex, the world's largest combined copper and gold mine, is enormously profitable.
  • Both properties are run by the same owner, who is a gold mine of information.
  • And so it was a gold mine for private military contractors that needed training grounds.
  • Booming development and hurricanes regularly wiping out beaches are eroding several feet of the sandy gold mine each year.
British Dictionary definitions for gold mine

gold mine

a place where gold ore is mined
a source of great wealth, profit, etc
Derived Forms
gold-miner, noun
gold-mining, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Idioms and Phrases with gold mine

gold mine

A rich, plentiful source of wealth or some other desirable thing, as in That business proved to be a gold mine, or She's a gold mine of information about the industry. [ First half of 1800s ]
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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