as in watch
the state of being constantly attentive and responsive to signs of opportunity, activity, or danger
the paparazzi were on red alert for sightings of the hot new Hollywood couple
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Recent Examples of red alert
This isn’t the first time Martinelli’s attempts to leave Panama have been thwarted — previously, Nicaragua canceled his travel plans over fears of an Interpol red alert notice, which asks police agencies around the world to arrest someone on sight.
—
Antonio Maria Delgado, Miami Herald, 4 Apr. 2025
City authorities issued two red alerts for road ice and blizzard dangers, while several districts canceled classes for Monday, the Global Times reported.
—Jessie Yeung, CNN, 2 Mar. 2025
But with the Cannes Film Market just around the corner, industry are suddenly on red alert and the impact is already being felt.
—Andreas Wiseman, Deadline, 5 May 2025
The app uses an algorithm that warns patients using yellow or red alerts.
—IEEE Spectrum, 6 Mar. 2021
See All Example Sentences for red alert
Antonio Maria Delgado, Miami Herald, 4 Apr. 2025
City authorities issued two red alerts for road ice and blizzard dangers, while several districts canceled classes for Monday, the Global Times reported.
—Jessie Yeung, CNN, 2 Mar. 2025
But with the Cannes Film Market just around the corner, industry are suddenly on red alert and the impact is already being felt.
—Andreas Wiseman, Deadline, 5 May 2025
The app uses an algorithm that warns patients using yellow or red alerts.
—IEEE Spectrum, 6 Mar. 2021
See All Example Sentences for red alert
Recent Examples of Synonyms for red alert
Noun
-
Remove any watches, rings or jewelry that could constrict swelling.—
Sacbee.com,
Sacbee.com,
9 July 2025
-
Walmart The Lily 2 is Garmin’s lovely little lady watch.—
Simon Hill,
Wired News,
9 July 2025
Noun
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Air quality alerts have also been issued across northern Minnesota and far north-west Indiana.—
Matthew Robinson,
MSNBC Newsweek,
15 July 2025
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News alerts in your inbox: Don't miss the important news of the day.—
Lorenzino Estrada,
AZCentral.com,
14 July 2025
Noun
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But with the right behavioral analytics and cross-functional vigilance, patterns emerge.—
Michael Barnhart,
Fortune,
3 July 2025
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While Austin’s crime trends are encouraging in some respects, ongoing challenges demand vigilance and adaptability.—
Daniel Fusch,
Austin American Statesman,
2 July 2025
Cite this Entry
“Red alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20alert. Accessed 20 Jul. 2025.
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