Date: 14th century transitive verb to unfasten the lock of, open , undo , to free from restraints or restrictions , to furnish a key to ; disclose , intransitive verb to become unfastened or freed from restraints
UNLOCK
Meaning of UNLOCK in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012