Definition of dead end

i. An entry, gangway, level, or other mine passage extending beyond the mine workings into solid coal or ore; a stub.

Synonym of: stub entry

ii. Underground passageway either blocked or not holed through.

Ref: Pryor, 3

iii. The unworked end of a drift or working.

Ref: Hess

iv. An unventilated underground mine passage extending some distance beyond other mine workings into solid rock.

Ref: Long

v. A term used in coal mining for the termination of all electric wiring (except cables to equipment) outby the last crosscut where ample ventilation will reduce the possibility of an electric arc causing an explosion.

Ref: Kentucky

vi. The end of a drilling line or cable made fast to some stationary part of the drill rig or to a deadman.

Ref: Long