Invigilator vs. Proctor

Invigilator and Proctor Definitions
Invigilator
To watch over, especially to monitor (students) who are taking a written test.
Proctor
A supervisor especially of an examination or dormitory in a school.
Invigilator
A person who supervises students during an examination; a proctor
Proctor
To supervise (an examination).
Invigilator
A person who supervises a gallery at a museum.
Proctor
(US) A person who supervises students as they take an examination, in the United States at the college/university level; often the department secretary, or a fellow/graduate student; an invigilator.
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Invigilator
Someone who watches examination candidates to prevent cheating.
Proctor
(UK) An official at any of several older universities.
Invigilator
Someone who watches examination candidates to prevent cheating
Proctor
A legal practitioner in ecclesiastical and some other courts.
Proctor
(obsolete) One appointed to collect alms for those who could not go out to beg for themselves, such as lepers and the bedridden.
Proctor
A procurator or manager for another.
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Proctor
A representative of the clergy in convocation.
Proctor
(US) to function as a proctor
Proctor
(transitive) to manage as an attorney or agent
Proctor
One who is employed to manage to affairs of another.
Proctor
To act as a proctor toward; to manage as an attorney or agent.
Proctor
Someone who supervises (an examination)
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Proctor
As of students taking an exam, to prevent cheating