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
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.
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David Faris, Newsweek, 4 Nov. 2024
Three regions, including Andalucia and Valencia, were under red alerts on Wednesday.
—Kevin Shalvey, ABC News, 30 Oct. 2024
The Valencian regional government is being criticized for not sending out flood warnings to people’s mobile phones until 8 p.m. on Tuesday, when the flooding had already started in some parts and well after the national weather agency had issued a red alert for heavy rains.
—Alberto Saiz, Los Angeles Times, 31 Oct. 2024
If his death was an online storm, then the weeks leading up to it were a red alert.
—Lucy Ford, TIME, 21 Oct. 2024
See all Example Sentences for red alert 
David Faris, Newsweek, 4 Nov. 2024
Three regions, including Andalucia and Valencia, were under red alerts on Wednesday.
—Kevin Shalvey, ABC News, 30 Oct. 2024
The Valencian regional government is being criticized for not sending out flood warnings to people’s mobile phones until 8 p.m. on Tuesday, when the flooding had already started in some parts and well after the national weather agency had issued a red alert for heavy rains.
—Alberto Saiz, Los Angeles Times, 31 Oct. 2024
If his death was an online storm, then the weeks leading up to it were a red alert.
—Lucy Ford, TIME, 21 Oct. 2024
See all Example Sentences for red alert
Recent Examples of Synonyms for red alert
Noun
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In early 2020, Patek Philippe, regarded by watch collectors as the finest watchmaker in the world, opened a state-of-the-art facility in Plan-les-Ouates, the industrial suburb of Geneva that also is home to Rolex, Vacheron Constantin, Piaget, and other luxury watch factories.Victoria Gomelsky, Robb Report, 23 Dec. 2024
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Housing reports have been and will continue to be a key watch item for investors given that shelter cost inflation has proven extremely sticky and a key source of upward pressure on inflation, which is in turn keeping rates elevated.Zev Fima, CNBC, 22 Dec. 2024
Noun
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This feature alerts nearby vehicles and drivers to the presence of a disabled autonomous truck and any potential hazards.Richard Bishop, Forbes, 19 Dec. 2024
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Stress puts your body on alert, and, in turn, your body releases adrenaline, the fight-or-flight hormone.Alysse Dalessandro, Health, 18 Dec. 2024
Noun
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With more dangerous surf expected, officials are urging vigilance to prevent further tragedies.Tom Rogers, Newsweek, 26 Dec. 2024
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Constant vigilance is difficult when a human operator is remotely observing the battlefield through the sensors of a maintenance-hungry ground robot.David Axe, Forbes, 21 Dec. 2024
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 31 Dec. 2024.
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