alert
adjective
fully aware and attentive; wide-awake; keen.
alerted
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past participleof alert.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
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past tense formof alert.past tense
Used to describe completed actions or previous habitual actions.
alertadjectivefully aware and attentive; wide-awake; keen.
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.
As he fled the officers, he alerted his friends at home, who called 911.
From The Wall Street Journal ● Sep. 9, 2026
Around 5:20 p.m., officials were alerted to a Cessna plane that caught fire when it crash-landed onto one of three airstrips at Montgomery-Gibbs Executive Airport.
From Los Angeles Times ● Sep. 8, 2026
After the van driver alerted police to the device in his van, the centre was evacuated in what was later described as a hoax bomb alert.
From BBC ● Sep. 2, 2026
The company said it alerted the collection agency in question as well as the credit bureaus to the mistake.
From Salon ● Sep. 1, 2026
“Marine 657. Good luck. Crash crew alerted and ready.”
From "The Great Santini" by Pat Conroy
