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 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
In Tarragona, a city in southern Catalonia roughly midway between Barcelona and Valencia, school classes were canceled after a red alert for intense rainfall was issued.
—David Faris, Newsweek, 4 Nov. 2024
Authorities in Spain have halted commuter rail services around Barcelona amid a red alert for extreme rain, following deadly floods around Valencia that have already claimed 217 lives.
—David Faris, Newsweek, 4 Nov. 2024
See all Example Sentences for red alert 
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
In Tarragona, a city in southern Catalonia roughly midway between Barcelona and Valencia, school classes were canceled after a red alert for intense rainfall was issued.
—David Faris, Newsweek, 4 Nov. 2024
Authorities in Spain have halted commuter rail services around Barcelona amid a red alert for extreme rain, following deadly floods around Valencia that have already claimed 217 lives.
—David Faris, Newsweek, 4 Nov. 2024
See all Example Sentences for red alert
Recent Examples of Synonyms for red alert
Noun
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Viewers of Today over the years could say the same about Kotb, who became a morning TV star under their watch, now leaving the franchise to forge a new path in an uncertain media climate.—
Eric Deggans,
NPR,
10 Jan. 2025
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The brand began selling watches at around $200 USD.—
Lilian Raji,
Forbes,
10 Jan. 2025
Noun
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But for many, the false evacuation alerts continued, buzzing their phones overnight and into the next day.—
Colleen Hagerty,
Rolling Stone,
18 Jan. 2025
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In December, the Los Angeles County Department of Public Health issued an animal health alert that several indoor-only cats had died after consumption of raw pet foods and counseling veterinarians to ask owners about feeding raw products to their pets.—
Brenda Goodman,
CNN,
18 Jan. 2025
Noun
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Educate and Empower Employees: Internal vigilance can be a company’s first line of defense.—
HEC Paris Insights,
Forbes,
10 Jan. 2025
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This alert serves as a reminder of the growing sophistication and accessibility of these technologies and the urgent need for vigilance in protecting ourselves from potential scams.—
Fox News Staff,
Fox News,
8 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 23 Jan. 2025.
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