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.

That means investors trying to predict where Bitcoin goes next will have to be alert to where the U.S.-Iran talks go and how durable any agreement reached appears to be.

From Barron's • Apr. 10, 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

Nvidia earnings ought to quell any major AI fears for now, but investors need to be alert for signs of who will be the winners and the losers.

From Barron's • Feb. 26, 2026

Still, while it may be tricky, they say there are signs listeners can be alert to.

From BBC • Nov. 21, 2025

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