- (n.) The quality or state of being vigilant; forbearance of sleep; wakefulness.
- (n.) Guard; watch.
- (n.) Watchfulness in respect of danger; care; caution; circumspection.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). vigilance. Retrieved September 21, 2026, from http://smartdefine.org/vigilance/definitions/2079640 |
| Chicago | Webster's. 2011. "vigilance" http://smartdefine.org/vigilance/definitions/2079640 (accessed September 21, 2026). |
| Harvard | Webster's 2011, vigilance, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/vigilance/definitions/2079640>. |
| MLA | Webster's. "vigilance" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/vigilance/definitions/2079640> |