(military) An explosive device placed in the water and intended to destroy or deter vessels.

the mining of gold-bearing quartz

A mine for gold ore or metal. / (idiomatic) A very profitable economic venture. / (idiomatic) A plentiful stockpile of something sought after.

Any mine used for the extraction of salt. / (by extension) Any laborious work situation, especially in a confined space.

(military) A mine which responds to the magnetic field of a target.

(US, Mafia, slang) A personal friend of the speaker/writer who is not a member of the Mafia.

plural of tin mine

plural of proxy mine

A mine where the material above the ore is removed (stripped) to expose it for removal and use.

Alternative spelling of strip-mine