Mined meaning : To remove (ore) from the ground. To dig into, for ore or metal. To sow mines (the explosive devices) in (an area). To damage (a vehicle or ship) with a mine (an explosive device). To dig a tunnel or hole; to burrow in the earth. To dig away, or otherwise remove, the substratum or foundation of; to lay a mine under; to sap; to undermine. (by extension) To ruin or destroy by slow degrees or secret means. To pick one's nose. To earn new units of cryptocurrency by doing certain calculations.