A device for firing a cannon by a percussion primer.

A lock enclosed in a wooden case and attached to the face of a door.

tide lock

(astronomy) Alternative form of tidal locking / A sealock.

(wrestling) A lock in which a close grip is obtained and a fall attempted by a heave over the hip.

The inner groove on a vinyl record in the form of a closed loop, which traps the tonearm and needle, preventing it from entering the label area.

plural of locked groove

plural of combination lock

Alternative form of lockup

plural of tidal lock