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English definition of “lock sb out”

lock sb out

(STOP ENTERING) phrasal verb with lock     /lɒk/ US  /lɑːk/ verb
B2 to prevent someone from entering a building or room by locking the door: He had to break into the house because his girlfriend had locked him out.Locking and bolting
(Definition of lock sb out (STOP ENTERING) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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