an escape artist who specializes in escaping handcuffs
someone who only bets when they are sure they will win
One who holds the key to a building etc. for security reasons.
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.