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
In the case of the cold drop in Spain, the timely translation of the red alert into concrete actions on the ground failed.
—
Geraldine Castro, WIRED, 28 Nov. 2024
Mozambique has also issued a red alert for its northern provinces, Cabo Delgado and Nampula, which could be severely impacted when Chido makes landfall on Sunday.
—Stephan Pechdimaldji, Newsweek, 13 Dec. 2024
In November, the World Meteorological Organization issued a red alert about the rate of climate change over such a relatively short period of time.
—Marshall Shepherd, Forbes, 7 Dec. 2024
Ten minutes later, the national weather agency issued a red alert, the highest warning, to the regional authorities about heavy rains in the Valencia area.
—Emma Bubola, New York Times, 24 Nov. 2024
See all Example Sentences for red alert 
Geraldine Castro, WIRED, 28 Nov. 2024
Mozambique has also issued a red alert for its northern provinces, Cabo Delgado and Nampula, which could be severely impacted when Chido makes landfall on Sunday.
—Stephan Pechdimaldji, Newsweek, 13 Dec. 2024
In November, the World Meteorological Organization issued a red alert about the rate of climate change over such a relatively short period of time.
—Marshall Shepherd, Forbes, 7 Dec. 2024
Ten minutes later, the national weather agency issued a red alert, the highest warning, to the regional authorities about heavy rains in the Valencia area.
—Emma Bubola, New York Times, 24 Nov. 2024
See all Example Sentences for red alert
Recent Examples of Synonyms for red alert
Noun
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That is why our forecasts, watches and warnings focus on specific impacts such as wind conditions, snowfall, ice, temperature, visibility and other impacts.—
Doyle Rice,
USA TODAY,
22 Jan. 2025
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As for her accessories, Djokovic added a delicate pair of earrings, stacks of bracelets, a watch and dainty rings.—
Julia Teti,
WWD,
22 Jan. 2025
Noun
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Staff later put out an alert, but she was not found until 8:45 a.m. When staff finally located Adolphus on a second-floor roof, her body temperature was 50 degrees, Banek said.—
Theresa Braine,
New York Daily News,
29 Jan. 2025
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Current Incidents: Traffic alert issued due to heavy rain conditions on eastbound K-10 in Lenexa Authorities issue traffic alert for dangerous driving conditions amid heavy rain on K-10, between Kill Creek Road and K-7.—
Kansas City Star Bot,
Kansas City Star,
30 Jan. 2025
Noun
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Incorporating training modules that examine external communication platforms and multi-channel tactics can help expand employee vigilance.—
Mike Britton,
Forbes,
24 Jan. 2025
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If a page is getting a lot of eyeballs, like cryptocurrency, for example, that's a page that people are going to be monitoring with some vigilance.—
Eric Berger,
Ars Technica,
16 Jan. 2025
Thesaurus Entries Near red alert
Cite this Entry
“Red alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20alert. Accessed 2 Feb. 2025.
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