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English definition of “unlock”

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unlock

verb [T] uk   /ʌnˈlɒk/ us    /-ˈlɑːk/
B2 to open something, especially a door that is locked (= fastened with a lock) using a key or an electronic device: I keep worrying that I've left the garage door unlocked.unlock the mystery/secret of sth to discover important new facts about something: A chemical has been discovered that may be the key to unlocking the mysteries of Parkinson's disease.unlock the imagination to make the imagination more active, producing interesting ideas and images: One of poetry's functions is to somehow unlock the imagination.
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(Definition of unlock from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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