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English definition of “work sb up”

work sb up

phrasal verb with work     /wɜːk/ US  /wɝːk/ verb
to make yourself or another person feel upset or feel strong emotions: Try not to work yourself up about the exams. Nationalist speeches worked the crowd up into a frenzy.Making people sad, shocked and upset
(Definition of work sb up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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