Coal or gold hole

adjective

1. My

pronoun

1. That which belongs to me

noun

1. A pit or excavation in the earth from which mineral substances are taken
2. An ore deposit
3. A subterranean passage under an enemy position
4. An encased explosive that is placed in the ground or in water and set to explode when disturbed
5. A rich source of supply

verb

1. To dig under to gain access or cause the collapse of (an enemy position)
2. Undermine
3. To get (something, such as ore) from the earth
4. To extract from a source

   "information mined from the files"

5. To burrow beneath the surface of

   "larva that mines leaves"

6. To place military mines in, on, or under

   "mine a harbor"

7. To dig into for ore or metal
8. To process for obtaining a natural constituent

   "mine the air for nitrogen"

9. To seek valuable material in

   "mine old records for more details"

10. To create or obtain more units of (a cryptocurrency) through a cryptographic process

    "But bitcoins also need to be generated in the first place. Bitcoins are "mined" when you set your Bitcoin client to a mode that has it compete to update the public log of transactions. All the clients set to this mode race to solve a cryptographic puzzle by completing the next "block" of the shared transaction log. Winning the race to complete the next block wins you a 50-Bitcoin prize."

11. To dig a mine

adjective

1. Serving to counteract or protect against explosive mines

   "United Technologies Corp. won $68.1 million in Navy and Air Force contracts for antimine equipment …"

2. Opposed to the use of explosive mines

   ""These indiscriminate weapons do not care whether they blow up a child at play or a soldier on patrol," say antimine activists."

noun

1. A usually electrically fired land mine containing steel fragments that are discharged in a predetermined direction

noun

1. A rich source of something desired

noun

1. A mine usually placed just below the surface of the ground and designed to be exploded usually by the weight of vehicles or troops passing over it

adjective

1. Not graded

   "run-of-the-mine coal"

2. Run-of-the-mill

noun

1. A mine that is worked from the earth's surface by the stripping of overburden