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English definition of “invigilate”

invigilate

verb [I or T] uk   /ɪnˈvɪdʒ.ɪ.leɪt/ UK (US proctor) us  
to watch people taking an exam in order to check that they do not cheat: Miss Jekyll will be invigilating (your chemistry exam) today.
invigilator
noun [C] uk   /-leɪ.tər/ us    /-leɪ.t̬ɚ/
a person whose job is to watch people taking an exam in order to check that they do not cheat: If you need more paper, please ask the invigilator.
(Definition of invigilate from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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