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English definition of “let sb/sth in”

let sb/sth in

verb uk phrasal verb with let   /let/ (present participle letting, past tense and past participle let) us  
B2 to allow someone or something to enter: She opened the door and let me in. These shoes are starting to let water in.Arriving, entering and invadingAllowing and permitting
(Definition of let sb/sth in from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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