a supernatural being supposed to inhabit a mine; = mine spirit n. at mine, n. compounds 2.

One of a race of diminutive spirits fabled to inhabit the interior of the earth and to be the guardians of its treasures; a goblin, dwarf.

A female gnome.

A spirit or goblin imagined to dwell in mines, and to indicate the presence of ore by knocking.

In German folklore: (a) a familar spirit, haunting houses and rendering services to the inmates, but often of a tricky disposition; a brownie; (b)…

A gnome, goblin, or dwarf; transferred, used for a member of an anti-establishment political movement in Holland.