gold mine

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.

gold mine

noun

1. a place where gold ore is mined

2. a source of great wealth, profit, etc

Other Word Forms

• gold-miner noun
• gold-mining noun

Word History and Origins

Origin of gold mine¹

late Middle English word dating back to 1425–75

Idioms and Phrases

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]

Example Sentences

My first year as an MBA student was a gold mine of entertainment as I regaled Clark with tales of the hookups between classmates.

From Los Angeles Times

Eighteen workers trapped for about 18 hours in a gold mine in north-western Colombia have been rescued by emergency crews, the country's government has said.

From BBC

If Freddie Freeman wasn’t enough of a jumping-off point for the documentary, the filmmakers interviewed his father, Fred Freeman, a source that provided a “gold mine” of information.

From Los Angeles Times

Armed groups, including jihadist groups, and Sahel governments are in competition for control over many of these small-scale gold mines.

From BBC

A report from the University of Cambridge's Minderoo Centre said the apps were a "gold mine" for consumer profiling and collecting information.

From BBC