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

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

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

From BBC • Nov. 21, 2025

“Directors should be alert and speak up is all that I can advise.”

From The Wall Street Journal • Nov. 10, 2025

Take no risks and be alert to danger.

From "And Then There Were None" by Agatha Christie