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English definition of “lock”

lock

verb     /lɒk/
FASTEN [I, T] B1 to fasten something with a key, or to be fastened with a key: Did you lock the door? If you shut the door it will lock automatically. → Opposite unlockLocking and bolting
lock sth/sb away/in, etc B2 to put something or someone in a place or container that is fastened with a key: She locked herself in her bedroom. Most of my jewellery is locked away in a safe.Locking and bolting
FIXED [I] to become fixed in one position: I tried to move forward but the wheels had locked.Immobility
(Definition of lock verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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