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English definition of “perturb”

perturb

verb [T] uk   /pəˈtɜːb/ us    /pɚˈtɝːb/ formal
to worry someone: News of the arrest perturbed her greatly.Causing anxiety and worryMaking people sad, shocked and upset
(Definition of perturb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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