mine

An explosive device hidden in the ground or water, designed to detonate.

"The ship struck a sea mine."

Belonging to me; used to refer to something owned by the speaker.

"That lovely red car is mine."

To dig or excavate the earth to extract valuable minerals or resources.

"They mine for diamonds in Africa."

A deep excavation in the earth to extract coal, metal, or other minerals.

"Many people worked in the coal mine."