invigilate - definition and synonyms

verb [intransitive/transitive] British 

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/ɪnˈvɪdʒəleɪt/
present tense
I/you/we/theyinvigilate
he/she/itinvigilates
present participleinvigilating
past tenseinvigilated
past participleinvigilated
  1. to watch students who are taking an examination in order to make sure that they do not cheat. Someone who does this is called an invigilator.

derived word

invigilation

 

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/ɪnˌvɪdʒəˈleɪʃ(ə)n/
noun [uncountable]