What does invigilate mean?
Invigilate means to supervise an examination, test, or formal assessment. An invigilator checks that candidates follow the rules, that the paper remains secure, and that no one receives unfair assistance. The verb is especially common in British English and is also used in North America, though less frequently. In a broader sense, invigilate can mean to keep watch over a place, person, or activity with care and attention. The word is more formal and specific than the general verbs “watch” or “monitor,” and it carries a clear association with careful oversight and accountability. Its unusual spelling reflects its Latin origin: “invigilate” comes from Latin invigilare, meaning “to watch over,” from in- and vigilare, “to keep watch.” The same root appears in familiar words such as “vigilant,” “vigilance,” and “vigil.”
To supervise an examination or test and ensure that the rules are observed and candidates are treated fairly.
"The exams will be invigilated by trained members of staff."
Especially common in British English and formal educational contexts.
To watch over or closely supervise a person, place, or activity.
"A security officer invigilated the entrance throughout the night."
This broader sense is less common than the educational use and can sound formal.
Invigilate literally means “watch over”: the word comes from Latin for keeping vigil, the same root behind vigilance and vigilant.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of invigilate
The English verb comes from Latin invigilare, meaning “to watch over” or “to keep watch,” formed from in- and vigilare, “to be watchful.” It entered English in the 17th century, initially in the sense of watching over or guarding something. Its modern educational sense, supervising an examination, developed later and is especially associated with British English.
Related word forms
How invigilate is actually used
The word is especially associated with British English and formal educational settings. It is more precise than “watch” when referring to supervising an examination, because it implies responsibility for maintaining order and ensuring that the rules are followed.