gold mine

noun

: a rich source of something desired

Synonyms of gold mine

• treasure trove
• repository
• mother lode
• mine

Examples of gold mine in a Sentence

The library is a gold mine of information.

the estate sale promises to be a gold mine for antique dealers

Recent Examples on the Web

Behind the story Ituri, in eastern Democratic Republic of Congo, is a remote province of forests, green hills and gold mines where weak state institutions and decades of armed conflict have displaced nearly 900,000 people. — Brittney Melton, NPR, 21 July 2026

Thirty-three workers became trapped when a copper/gold mine collapsed in Chile’s Atacama Desert. — USA Today, 21 July 2026

Separately, at least 15 informal miners were killed when a defunct gold mine partly collapsed Monday in the district of Wadi Halfa, close to Sudan’s border with Egypt, authorities said. — Los Angeles Times, 7 July 2026

Streptomyces are bacteria that live in soil and are known as gold mines for antibiotic molecule discovery. — Beth Mole, ArsTechnica, 26 June 2026

Word History

First Known Use

1605, in the meaning defined above

Rhymes for gold mine

• affine
• airline
• align
• aline
• assign
• baseline
• beamline
• benign
• bloodline
• bovine
• brucine
• byline