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Definitions

gold mine

NOUN
rich source
Synonyms
WEAK
Eldorado Golconda bonanza cash cow golden goose goose that laid the golden egg gravy train license to print money mother lode rich lode source of supply vein very profitable venture

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Twenty-five workers were inside the gold mine when the tailings dam - a structure which holds mining waste - burst on 25 March.

From BBC • Apr. 9, 2026

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

From Los Angeles Times • Mar. 26, 2026

It was in 1901 that British businessman William Knox D’Arcy, flush with cash from developing an Australian gold mine, heard about a fortune to be made in Iranian oil.

From Barron's • Mar. 5, 2026

Dead batteries yield lithium, cobalt and nickel; LED screens contain germanium; circuit boards hold platinum and palladium; hard disks store rare earths -- e‑waste has long been described as a "gold mine" for critical minerals.

From Barron's • Feb. 18, 2026

There is nothing magical about a gold mine.

From "Long Walk to Freedom" by Nelson Mandela