| Main Entry: | gold mine |
| Part of Speech: | noun |
| Definition: | rich source |
Synonyms: |
Eldorado, Golconda, bonanza, cash cow, cash cow, golden goose, goose that laid the golden egg, goose that laid the golden egg, gravy train, license to print money, mother lode, rich lode, source of supply, vein, very profitable venture |