gold mine

American  

noun

1. a mine yielding gold.

2. a source of great wealth or profit, or any desirable thing.

3. a copious source or reserve of something required.

   a gold mine of information about antiques.

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gold mine British  

noun

1. a place where gold ore is mined

2. a source of great wealth, profit, etc

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gold mine Idioms  

1. 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]

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Other Word Forms

• gold-miner noun
• gold-mining noun

Etymology

Origin of gold mine

late Middle English word dating back to 1425–75

Example Sentences

Are the Dodgers baseball’s version of a gold mine?

From Los Angeles Times

He also oversaw the creation of the Vicuna joint venture, which BHP says has the potential to become one of the world’s top copper and gold mines.

From The Wall Street Journal

The London-listed miner underperformed peers by approximately 50% as operational challenges at its Mara Rosa gold mine in Brazil weighed on shares, they say.

From The Wall Street Journal

“That data is the gold mine of our business,” Bron says.

From The Wall Street Journal

Initially, the government said that would include the Martabe gold mine, which conservationists have regularly accused of environmental damage.

From Barron's