plural of lock key

An electronic lock operated by a keycard.

A type of lock opened by a sequence of numbers or symbols.

Alternative form of lockout

plural of lock-out

(historical) A hospital for the isolation and treatment of lepers. / (historical) A hospital treating people with venereal diseases in which patients were kept confined until cured.

plural of lock hospital

A locking system in vehicles, where locks to all the doors can be locked or unlocked in a single operation.

(dated) combination lock

plural of lock-weir