| 1. | a mine from which salt is excavated. |
| 2. | Usually, salt mines. a place of habitual confinement and drudgery: After two weeks of vacation it will be back to the salt mines for the staff. |

| salt mine | |
noun | |
| 1. | a mine where salt is dug |
| 2. | a job involving drudgery and confinement [syn: treadmill] |