mine

Used to indicate the one or ones belonging to me.

Used instead of my before an initial vowel or the letter h.

A hole or tunnel dug into the earth from which ore or minerals are extracted.

A surface excavation where the topmost or exposed layer of earth is removed for extracting its ore or minerals.

The site of such a hole, tunnel, or excavation, including its surface buildings and equipment.

A deposit of ore or minerals in the earth or on its surface.

An abundant supply or source of something valuable.

A tunnel dug under an enemy emplacement to destroy it by explosives, cause it to collapse, or gain access to it for an attack.