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
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
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Recent Examples of alert
Anna Skinner, MSNBC Newsweek, 24 Oct. 2025
Lexington Police Chief Lawrence Weathers said the shooting occurred after Remilien stopped a vehicle in connection to a license plate reader alert in the area of Versailles Road.
—Caroline Neal, Louisville Courier Journal, 24 Oct. 2025
Jeff Truesdell, PEOPLE, 30 Oct. 2025
Then the mother alerted law enforcement.
—Julia Marnin, Miami Herald, 30 Oct. 2025
Gabe Whisnant, MSNBC Newsweek, 30 Oct. 2025
The two Zephyr goals would not have been enough if not for the alert play by Boberg less than five minutes later.
—Mike Cook, Twin Cities, 29 Oct. 2025
See All Example Sentences for alert
Noun
The alerts have been issued amid strong onshore winds, which are known to create hazardous surf and powerful rip currents.
—Anna Skinner, MSNBC Newsweek, 24 Oct. 2025
Lexington Police Chief Lawrence Weathers said the shooting occurred after Remilien stopped a vehicle in connection to a license plate reader alert in the area of Versailles Road.
—Caroline Neal, Louisville Courier Journal, 24 Oct. 2025
Verb
The school alerted law enforcement.
—Jeff Truesdell, PEOPLE, 30 Oct. 2025
Then the mother alerted law enforcement.
—Julia Marnin, Miami Herald, 30 Oct. 2025
Adjective
Although no immediate damage or injuries were reported, officials reminded residents in the remote region to remain alert for potential aftershocks.
—Gabe Whisnant, MSNBC Newsweek, 30 Oct. 2025
The two Zephyr goals would not have been enough if not for the alert play by Boberg less than five minutes later.
—Mike Cook, Twin Cities, 29 Oct. 2025
See All Example Sentences for alert
Recent Examples of Synonyms for alert
Noun
-
The blackout should come as little surprise to YouTube TV subscribers, who for the last week have seen announcements warning of a stalemate.—
Liam Reilly,
CNN Money,
31 Oct. 2025
-
The regulator is examining 142,600 units of the 2023-2024 Honda Pilot SUV for a possible malfunction in the rear seatbelt warning system, which may incorrectly alert drivers about passenger seatbelt usage.—
Nandan Mandayam,
USA Today,
30 Oct. 2025
Noun
-
This patience is watchfulness, not idleness.—
Francois Botha,
Forbes.com,
7 Sep. 2025
Verb
-
Chairwoman Robyn Denholm urged shareholders to support it, warning in a letter Monday that the company risks losing significant value if the deal fails and Musk opts to step down as chief executive.—
Sasha Rogelberg,
Fortune,
3 Nov. 2025
-
Officials from the government and air traffic controllers’ union say that flying remains safe, but warn that the longer the shutdown drags on, the more stress these safety-critical employees will be under.—
Zach Wichter,
USA Today,
2 Nov. 2025
Adjective
-
But beneath the glamour and aesthetics, something deeper is keeping you awake past midnight.—
Valerie Mesa,
PEOPLE,
31 Oct. 2025
-
These parasomnias occur when the brain is partly awake and partly asleep.—
Brandon Peters,
Verywell Health,
29 Oct. 2025
Adjective
-
Several prominent business leaders have already voiced cautious optimism, seeing in Mamdani a chance to reset the relationship between City Hall and commerce.—
Sally Susman,
Time,
5 Nov. 2025
-
Taking the long view Many finance leaders remain cautious, viewing bitcoin as too volatile—especially recently—compared to traditional assets.—
Sheryl Estrada,
Fortune,
4 Nov. 2025
Adjective
-
For the first time, a machine was able to do what only intelligent humans had previously done.—
Big Think,
Big Think,
4 Nov. 2025
-
Humans have a much larger neocortex than other animals, relative to body size, and the species with the largest neocortices—elephants, dolphins, gorillas, chimpanzees, dogs—are among the most intelligent.—
James Somers,
New Yorker,
3 Nov. 2025
Adjective
-
Green was quick to point out that every team that has won a championship featured a strong defense.—
Jordy Fee-Platt,
New York Times,
5 Nov. 2025
-
Take this quick quiz to see where your digital habits stand.—
Kurt Knutsson,
FOXNews.com,
5 Nov. 2025
Noun
-
If there is a potential for temperatures to fall into these thresholds, a freeze watch may be issued a few days ahead of time.—
KANSAS CITY STAR WEATHER BOT,
Kansas City Star,
2 Nov. 2025
-
Television cameras showed Schneider tapping at the watch on his wrist before throwing his arms up in apparent anger.—
Chandler Rome,
New York Times,
2 Nov. 2025
Cite this Entry
“Alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alert. Accessed 7 Nov. 2025.
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