vigilance

noun

vig·​i·​lance ˈvi-jə-lən(t)s 

: the quality or state of being vigilant

Synonyms of vigilance

• watchfulness
• watch
• alertness

Examples of vigilance in a Sentence

eternal vigilance is the price of freedom

Recent Examples on the Web

Experts say that the rising cost of travel and vacations may be pushing people to hasty decisions and less vigilance. — Vince Basada, Sacbee.com, 24 Aug. 2026

Summary Executive leadership is inherently high-pressure, with crises initially sharpening focus and vigilance. — Julian Hayes Ii, Forbes.com, 23 Aug. 2026

Officials across the islands are opening shelters, canceling events and urging vigilance as Lala’s impacts spread toward Maui, Oahu and Kauai, a region still scarred by recent floods. — Jennifer Sinco Kelleher, Los Angeles Times, 15 Aug. 2026

Kim was credited as an essential member of George Washington’s Reactor Department for his unwavering vigilance. — Magda Liszewska, Oc Register, 5 Aug. 2026

Word History

First Known Use

1533, in the meaning defined above

Phrases Containing vigilance

• hyper-vigilance
• vigilance committee

Kids Definition

vigilance

noun

vig·​i·​lance ˈvij-ə-lən(t)s 

: the quality or state of being vigilant

Medical Definition

vigilance

noun

vig·​i·​lance ˈvij-ə-lən(t)s 

: the quality or state of being wakeful and alert : degree of wakefulness or responsiveness to stimuli

vigilant

-lənt 

adjective