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English definition of “tie sb up”

tie sb up

(FASTENED) phrasal verb with tie     /taɪ/ verb (present participle tying, past tense and past participle tied)
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).Fastening and tying
(Definition of tie sb up (FASTENED) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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