| invigilate | (verb) watch over (students taking an exam, to prevent cheating) | Synonyms: proctor |
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| invigilation | (noun) keeping watch over examination candidates to prevent cheating | - |
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| invigilator | (noun) someone who watches examination candidates to prevent cheating | - |
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| unvigilant | (adjective) not alert to what is potentially dangerous | Synonyms: unalert, unwatchful |
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| vigil | (noun) a purposeful surveillance to guard or observe | Synonyms: watch |
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| (noun) the rite of staying awake for devotional purposes (especially on the eve of a religious festival) | Synonyms: watch |
| (noun) a period of sleeplessness | - |
| vigilance | (noun) vigilant attentiveness | Synonyms: watchfulness, weather eye |
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| (noun) the process of paying close and continuous attention | Synonyms: alertness, wakefulness, watchfulness |
| vigilant | (adjective) carefully observant or attentive; on the lookout for possible danger | Synonyms: argus-eyed, open-eyed, wakeful, watchful |
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| vigilante | (noun) member of a vigilance committee | Synonyms: vigilance man |
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| vigilantism | (noun) the actions of a vigilance committee in trying to enforce the laws | - |
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| vigilantly | (adverb) in a watchful manner | Synonyms: watchfully |
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