noun

vigilance

vigilance, watchfulness, alertness

Constant vigilance is required to prevent accidents.

Constant vigilance is required to prevent accidents.

((noun)) the quality of being watchful The situation requires constant vigilance.

Synonyms: watchfulness, alertness, caution; Antonyms: negligence, inattention

From Latin 'vigilantia' (wakefulness), from 'vigil' (watchful, awake).

Think of a 'vigil' (a period of keeping awake). 'Vigilance' is the state of being watchful during that time.

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