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English definition of “tie sb up”

tie sb up

verb uk phrasal verb with tie   /taɪ/ (present participle tying, past tense and past participle tied) us  

(FASTENED)

B2 to make a person unable to move by tying a rope or something similar around their body or part of their body: The burglars had tied him up (to the bed).

(NOT AVAILABLE)

When someone is tied up, they are busy or prevented from doing something, such as speaking to someone or going somewhere, because of being involved in another event or activity: I'm afraid we can't meet till Wednesday - I'm tied up on Monday and Tuesday. Mrs Moran is tied up in a meeting at the moment, but I'll ask her to call you later.
(Definition of tie sb up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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