/ ɪnˈvɪdʒɪleɪt; NAmE / verb
( BrE ) ( NAmE proc·tor ) to watch people while they are taking an exam to make sure that they have everything they need, that they keep to the rules, etc. :
[ vn ]
to invigilate an exam
[also v ]
► in·vigi·la·tion / ɪnˌvɪdʒɪˈleɪʃn; NAmE / noun [ U ]
► in·vigi·la·tor / ɪnˈvɪdʒɪleɪtə(r); NAmE / ( BrE ) ( NAmE proc·tor ) noun :
If you have a problem, ask the invigilator.
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WORD ORIGIN
mid 16th cent. (in the general sense watch over, keep watch ): from Latin invigilat- watched over, from the verb invigilare , from in- upon, towards + vigilare watch (from vigil watchful).