Synonyms of 'unlock'
1 openDictionary, undo, unfasten
She unlocked the case and lifted out the vase.
2 discoverDictionary, uncover, unearth
He dedicated his life to unlocking the secrets of the universe.
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If a person or animal is released from somewhere where they have been locked up or looked after, they are set free or allowed to go.
He was released from custody the next day.
If you uncover something, especially something that has been kept secret, you discover or find out about it.
Auditors said they had uncovered evidence of fraud.
Thesaurus for unlock from the Collins English Thesaurus
If you unlock something such as a door, a room , or a container that has a lock, you open it using a key.