on 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 US has warned its citizens against travelling to Kenya, while neighbouring countries such as Uganda, Ethiopia and Somalia are also on alert.
From BBC ● Oct. 24, 2026
On Thursday, Kim Yo Jong, the powerful sister of leader Kim Jong Un, said the North would place loudspeakers on standby along the border "within days" and had put unspecified "new counter means" on alert.
From Barron's ● Oct. 22, 2026
With a strong El Niño increasing the odds of big storms this fall and winter, California is on alert for possible flooding.
From Los Angeles Times ● Sep. 26, 2026
It’s a fine line because, yes, you may have good reason to be on alert if you hear more stories of your mother giving a neighbor thousands of dollars for doing a relatively menial job.
From MarketWatch ● Sep. 22, 2026
If all noises abruptly stopped, it meant the animals—all of them—were suddenly on alert.
From "Boots on the Ground: America's War in Vietnam" by Elizabeth Partridge
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