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English definition of “lock sb in”

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lock sb in

verb uk phrasal verb with lock   /lɒk/ us    /lɑːk/
B2 to prevent someone from leaving a room or building by locking the door: She stormed off to her bedroom and locked herself in. He was locked in his bedroom as a punishment. to prevent someone from ending or changing a financial arrangement: Most cell phone contracts lock you in for a fixed period.
See also
Translations of “lock sb in”
in Chinese (Traditional) 把(某人)鎖在屋子裡,將(某人)關起來…
in Chinese (Simplified) 把(某人)锁在屋子里,将(某人)关起来…
(Definition of lock sb in from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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