# gold mine

idiom

Source: https://englishreference.com/idiom/gold-mine
Updated: 2026-08-10

## Meaning

A very profitable economic venture.

## Examples

- This new website is a gold mine for our business.
- The small shop became a gold mine after the owner started selling popular local products online.
- Investors quickly realized that the startup's unique technology was a gold mine, leading to a massive increase in its market valuation.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.