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.

"The improvement we saw is clinically meaningful. These workers were able to stay awake and alert throughout a full eight-hour shift, which has real implications for performance, safety, and quality of life," Czeisler said.

From Science Daily • Apr. 1, 2026

The FCA has also warned motorists to be on the alert for scammers posing as car finance lenders offering fake compensation.

From BBC • Mar. 31, 2026

He was alert enough the night before his death to say goodbye to his daughter.

From Los Angeles Times • Mar. 30, 2026

Since the outbreak of the war of the Middle East, European countries have been on high alert for potential attacks on Iranian dissidents, Jewish places of worship and US-Israeli assets.

From Barron's • Mar. 28, 2026

Part of me was always on alert, waiting for the next fire.

From "Willodeen" by Katherine Applegate