1
as in warning
the act or an instance of telling beforehand of danger or risk
the white flash of the doe's raised tail, giving the "danger" alert to her fawns
Synonyms & Similar Words
Relevance
2
as in watchfulness
the state of being constantly attentive and responsive to signs of opportunity, activity, or danger
the doctor told the patient to be on the alert for any signs of infection
Synonyms & Similar Words
Antonyms & Near Antonyms
as in to warn
to give notice to beforehand especially of danger or risk
alerted us to the possibility that the roads would be flooded and we might have to take a detour
Synonyms & Similar Words
Antonyms & Near Antonyms
1
as in awake
paying close attention usually for the purpose of anticipating approaching danger or opportunity
she needed to stay alert throughout the train ride so as not to miss her stop
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in cautious
having or showing a close attentiveness to avoiding danger or trouble
warned us to be alert to the presence of pickpockets on the crowded bus
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in intelligent
having or showing quickness of mind
an alert and well-trained sheep dog who can handle difficult situations
Synonyms & Similar Words
Antonyms & Near Antonyms
4
as in quick
having or showing the ability to respond without delay or hesitation
an alert force of commandos, ready to go on a mission at a moment's notice
Synonyms & Similar Words
Antonyms & Near Antonyms
1
as in carefulness
a close attentiveness to avoiding danger
drove through the fog with extra alertness, as the road signs repeatedly warned of deer and moose crossings
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in vigilance
the state of being constantly attentive and responsive to signs of opportunity, activity, or danger
we observed the U.S. border patrol's intensified alertness for drug smugglers at the border stations
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
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Recent Examples of alert
Anna Skinner, MSNBC Newsweek, 28 July 2025
Jim waits 45 minutes after sending a trade alert before buying or selling a stock in his charitable trust's portfolio.
—Jim Cramer, CNBC, 28 July 2025
Franklin Foer, The Atlantic, 28 July 2025
Denver police have been alerted to the issue as well, Kuhn said.
—Elise Schmelzer, Denver Post, 28 July 2025
Amanda Castro, MSNBC Newsweek, 17 July 2025
Since then, the small town of roughly 3,000 has focused on rebuilding itself with a potential flood like that in mind, installing new safety measures and alert systems with financial help from the state.
—Kat Lonsdorf, NPR, 16 July 2025
See All Example Sentences for alert
Noun
The alert aims to protect vulnerable populations, including those with heart and respiratory conditions, children, and older adults, and highlights the risk of smoke—making indoor environments unsafe for some residents.
—Anna Skinner, MSNBC Newsweek, 28 July 2025
Jim waits 45 minutes after sending a trade alert before buying or selling a stock in his charitable trust's portfolio.
—Jim Cramer, CNBC, 28 July 2025
Verb
Its satellites have documented the melting of the polar ice caps and the destruction of forests, alerting humanity to the planet’s precarity.
—Franklin Foer, The Atlantic, 28 July 2025
Denver police have been alerted to the issue as well, Kuhn said.
—Elise Schmelzer, Denver Post, 28 July 2025
Adjective
Emergency responders are urging residents to stay alert as the storm continues to churn inland.
—Amanda Castro, MSNBC Newsweek, 17 July 2025
Since then, the small town of roughly 3,000 has focused on rebuilding itself with a potential flood like that in mind, installing new safety measures and alert systems with financial help from the state.
—Kat Lonsdorf, NPR, 16 July 2025
See All Example Sentences for alert
Recent Examples of Synonyms for alert
Verb
-
When more than a month’s worth of rain fell in 90 minutes just west of the United Center late Tuesday night, federal weather forecasters warned of possible flash flooding, triggering a chain of events that alerted some Chicago residents about potential danger.—
William Tong,
Chicago Tribune,
14 July 2025
-
Last month state immigration advocates warned that arrests of undocumented immigrants were ramping up in the state, creating anxiety and fear in communities with people taken every day.—
Livi Stanford,
Hartford Courant,
14 July 2025
Adjective
-
Without answers, the questions would keep them awake at night.—
Alexandra Skores,
CNN Money,
30 July 2025
-
By contrast, doing some movement in the back half of the day may delay your circadian rhythm a bit, which could benefit early birds who are looking to stay awake later into the night.—
Erica Sloan,
SELF,
30 July 2025
Adjective
-
Some analysts, including those at Barclays, have also pointed out that there could be potential deceleration in the second half, keeping cautious ratings despite the company’s optimistic outlook.—
Trefis Team,
Forbes.com,
1 Aug. 2025
-
Aston Martin Formula One driver Fernando Alonso has revealed a cautious approach in the wet-weather racing argument after the previous race at Spa-Francorchamps saw the FIA delay the race start by 80 minutes due to rain.—
Saajan Jogia,
MSNBC Newsweek,
1 Aug. 2025
Adjective
-
Operation Bounce House follows Oliver Lewis, a colonist on the planet New Sonora, who leads a simple life on his family ranch, playing with his band and tending to his family's selection of intelligent agriculture bots.—
Rachel Raposas,
People.com,
14 July 2025
-
Although not specifically marketed as a pet camera, the Eufy E220 is a budget-friendly indoor home security camera packed with typically more high-end features, including remote pan and tilt, sharp 2K video footage, automatic motion tracking, and intelligent motion and sound detection.—
Cierra Cowan July 11,
PC Magazine,
11 July 2025
Adjective
-
Even just a quick five-minute vacuuming of high-traffic areas offers an instant refresh.—
Kaitlyn Yarborough,
Southern Living,
2 Aug. 2025
-
Thank you for your bravery and quick actions in protecting the public!—
Tresa Baldas,
Freep.com,
2 Aug. 2025
Adjective
-
This same accident-prone influence might apply to your pet, so be vigilant.—
Georgia Nicols,
Denver Post,
13 July 2025
-
Maine State Police are warning the community to stay vigilant but have not divulged the cause of death or any details about the crime scene, leaving Stewart’s family with questions and nearby residents with fears that a killer may be among them.—
Faith Karimi,
CNN Money,
12 July 2025
Adjective
-
Judge, always wary of self-congratulation, downplayed his contributions.—
Brendan Kuty,
New York Times,
25 July 2025
-
Those who did speak were wary of unintended consequences, particularly on special education or immigrant students.—
Cayla Bamberger,
New York Daily News,
24 July 2025
Adjective
-
If you’re just getting started with rebounding and want something compact and easy to use (that doesn’t cost a small fortune), here’s a smart entry point.—
Jordan Galloway,
SELF,
15 July 2025
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Instead of chasing trends, smart companies stay committed to long-term brand building and reputation management.—
Expert Panel®,
Forbes.com,
14 July 2025
Cite this Entry
“Alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alert. Accessed 6 Aug. 2025.
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