A device or component for holding a key.
The individual or organisation with access to a cryptographic key.
A dominant partner who controls whether their submissive partner is able or allowed to orgasm or receive sexual stimulation, typically by locking the submissive partner in a chastity belt or chastity cage.
One who holds the key to a building etc. for security reasons.
One skilled in the use of machine tools for fashioning metal parts or tools out of metal.
A constructor of machines and engines; one versed in the principles of machines.
A person who operates machinery.
A person employed to shift scenery in a theater.