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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
late Middle English word dating back to 1425-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for gold-mine
Historical Examples
  • But a hundred thousand dollars, to say nothing of the gold-mine!

    The Haunted Mine Harry Castlemon
  • And when Gustus is twenty-one he will have half the money that came from the gold-mine.

    The Magic World Edith Nesbit
  • There is nothing that I can see to cause such mirth in the fact of your Uncle's having made a fortunate investment in a gold-mine.

  • It is their gold-mine—their one grand opportunity of getting a little money.

    The Toilers of the Field Richard Jefferies
  • The adventurer who, on the discovery of gold, goes at once to California or to Alaska, may stumble upon a gold-mine.

    The Principles of Economics Frank A. Fetter
  • "I'll aim at him as if he were a gold-mine," replied Steve, as he raised his rifle.

    The Talking Leaves William O. Stoddard
  • Nobody knows the value of a gold-mine or a woman, but millions o men has went busted, tryin to find out!

    Cursed George Allan England
  • Raleigh did not find the gold-mine, but he was a man of his word.

    The Children's Book of London Geraldine Edith Mitton
  • The thing was a gold-mine for him and his family if a banker could be induced to take it up.

    Balzac Frederick Lawton
  • If he wants my meadow he will have to pay for it as if it were a gold-mine in Peru.'

    Mohawks, Volume 1 of 3 Mary Elizabeth Braddon
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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Word Origin and History for gold-mine

late 15c., from gold + mine (n.). Figurative use by 1882.

Online Etymology Dictionary, © 2010 Douglas Harper
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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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