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.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of alert
Natasha Abellard, CNBC, 3 Oct. 2025
The alert is for Shasta Lake, Northern Sacramento Valley and Mountains Southwestern Shasta County to Western Colusa County.
—Ca Weather Bot, Sacbee.com, 3 Oct. 2025
PC Magazine, 4 Oct. 2025
Apple and Google on Thursday removed apps that alert people when Immigration and Customs Enforcement agents are nearby following pressure from Attorney General Pam Bondi.
—Bobby Allyn, NPR, 3 Oct. 2025
Thao Nguyen, USA Today, 25 Sep. 2025
Each night, the city turns into a large-scale stadium as an alert rings out that a special Battle Zone has opened.
—Christopher Cruz, Rolling Stone, 24 Sep. 2025
See All Example Sentences for alert
Noun
Jim waits 45 minutes after sending a trade alert before buying or selling a stock in his charitable trust's portfolio.
—Natasha Abellard, CNBC, 3 Oct. 2025
The alert is for Shasta Lake, Northern Sacramento Valley and Mountains Southwestern Shasta County to Western Colusa County.
—Ca Weather Bot, Sacbee.com, 3 Oct. 2025
Verb
The school urges any members of the student body who have been affected to alert the USF Department of Public Safety or report via the university’s app platform.
—PC Magazine, 4 Oct. 2025
Apple and Google on Thursday removed apps that alert people when Immigration and Customs Enforcement agents are nearby following pressure from Attorney General Pam Bondi.
—Bobby Allyn, NPR, 3 Oct. 2025
Adjective
Residents who were not registered for the alert system or other methods never received evacuation messages.
—Thao Nguyen, USA Today, 25 Sep. 2025
Each night, the city turns into a large-scale stadium as an alert rings out that a special Battle Zone has opened.
—Christopher Cruz, Rolling Stone, 24 Sep. 2025
See All Example Sentences for alert
Recent Examples of Synonyms for alert
Noun
-
Vehicles included in this recall may have an error in the instrument panel software at startup, failing to show speed, brake system information, and tire pressure warning lights.—
Olivia Evans,
Louisville Courier Journal,
3 Oct. 2025
-
There are no coastal watches or warnings in effect due to Tropical Storm Octave, according to the NHC.—
Julia Gomez,
USA Today,
3 Oct. 2025
Noun
-
This patience is watchfulness, not idleness.—
Francois Botha,
Forbes.com,
7 Sep. 2025
Verb
-
On Sunday, Moody’s Analytics chief economist Mark Zandi warned there was essentially no job growth in September, citing data from Revelio Labs and ADP.—
Danny Bakst,
Fortune,
6 Oct. 2025
-
Gaza is decimated In Gaza, the Hamas-run health ministry says more than 66,000 people have been killed − about half of them women and children − and humanitarian agencies now warn of famine.—
Susan Page,
USA Today,
5 Oct. 2025
Adjective
-
Used consistently, the CryoGlow can even boost circulation and support lymphatic drainage, leaving skin looking fresher and more awake.—
Conçetta Ciarlo,
Vogue,
1 Oct. 2025
-
Later, in the scene in which Winnifred is kept awake by a single pea, Burnett performed a prolonged pantomime of violent physical discomfort, thrashing and dangling like a fish on a line atop a towering stack of mattresses.—
Rachel Syme,
New Yorker,
29 Sep. 2025
Adjective
-
During the preview, a mischievous group of young diplodocus splash in the water around a pair of kayaking guests, while other juveniles like the triceratops are more cautious in nature, choosing to stick close to their parents.—
Griff Griffin,
MSNBC Newsweek,
30 Sep. 2025
-
The Dodgers are being cautious.—
Barry M. Bloom,
Sportico.com,
30 Sep. 2025
Adjective
-
Millions grew up less intelligent, more violent, poorer, and more likely to die from heart disease, stroke, and kidney failure.—
Tom Frieden,
Big Think,
30 Sep. 2025
-
But there were circumstances that could allow the highly intelligent Leland to have a better life.—
Janelle Griffith,
PEOPLE,
30 Sep. 2025
Adjective
-
Bitcoin is up about 25% this year, rising as more Wall Street institutions embrace the cryptocurrency and global investors begin to view it as a reputable portfolio allocation and not just a quick trading vehicle.—
Fred Imbert,
CNBC,
1 Oct. 2025
-
Its silicone design sits comfortably on the face, while quick preset modes make treatments simple to fit into daily life.—
Conçetta Ciarlo,
Vogue,
1 Oct. 2025
Noun
-
This watch guide was created using technology provided by Data Skrive.—
Data Skrive,
New York Times,
6 Oct. 2025
-
How the team adjusts in their first game without their best player will be worth the watch.—
Miami Herald,
Miami Herald,
5 Oct. 2025
Cite this Entry
“Alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alert. Accessed 7 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share