invigilator

/ɪnˈvɪdʒəleɪtər/
noun
  1. A person who supervises students during an exam to ensure rules are followed.
    • If you have a question, raise your hand and wait for the invigilator.
    • The invigilator walked quietly between the rows of desks.
    • The invigilator collected all the papers exactly when time was up.
Antonyms
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