be vigilant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The takeaway from your letter — and the lesson for readers — is that it’s important to be vigilant.

From MarketWatch • May 11, 2026

A woman whose spaniel died following a suspected snake bite is warning other dog owners to be vigilant of adders during the summer months.

From BBC • Apr. 24, 2026

“The Committee will be vigilant to this risk,” Breman added.

From The Wall Street Journal • Mar. 23, 2026

Hochman advised that people be vigilant of their surroundings, call 911 if something appears suspicious of if they’re being followed, park in well-lit areas, and lock car doors immediately after getting in the vehicle.

From Los Angeles Times • Feb. 10, 2026

What with our nation involved in a great war and our young men leaving our sweet land of liberty, we must be vigilant on the home front.

From "Moon Over Manifest" by Clare Vanderpool