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
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
Parts of northern Madagascar were also placed under red alert.
—Gerald Imray, Los Angeles Times, 12 Jan. 2025
See All Example Sentences for red alert
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
Parts of northern Madagascar were also placed under red alert.
—Gerald Imray, Los Angeles Times, 12 Jan. 2025
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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Under the sheriff’s policies and procedures, Ornelas would have been flagged in the jail’s electronic medical records system as requiring behavioral health services — an alert that should have shown up when he was booked in June 2023, the lawsuit says.—
Kelly Davis,
San Diego Union-Tribune,
5 July 2025
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That’s why staying alert, keeping your software up to date and following good security habits can go a long way in protecting your device.—
Kurt Knutsson,
FOXNews.com,
4 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 18 Jul. 2025.
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