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

Police have said that a number of roads in the County Armagh town remain closed on Tuesday morning following an alert on Church Place.

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

In October, Sam Altman said OpenAI’s approach was like “betting on a series of startups,” followed by a “Code Red” competition alert in December.

From The Wall Street Journal • Mar. 29, 2026

At an Army base in Harrisburg, Pennsylvania, an elite helicopter squadron waited on high alert with one assignment.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin