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English definition of “unlock”

unlock

verb [T]     /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.Unfastening and opening 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 .Finding and discovering 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 .Affecting and influencing
(Definition of unlock verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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