be alert

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.

Security Minister Dan Jarvis said people should be "alert and vigilant" but not "alarmed".

From BBC • Apr. 30, 2026

The Met had earlier promised an increased police presence in response to the protest, adding officers would be "alert to any behaviour that crosses the line from protest into criminality".

From BBC • Mar. 28, 2026

Schnabel said the experience of 2022 has taught policymakers what to look out for as warning signs when they are assessing the impact of an energy shock, and they should be alert.

From The Wall Street Journal • Mar. 27, 2026

Investors will be alert to comments from top executives about future AI activity which could impact stocks and markets.

From Barron's • Feb. 16, 2026

Stanton ordered troops to turn out into the streets, the guards to be doubled, military forts to be alert, guns manned, and special guards to be posted around the Old Capitol Prison.

From "Chasing Lincoln's Killer" by James L. Swanson