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
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Recent Examples of alert
Preston Fore, Fortune, 22 June 2025
Now, forces now remaining on high alert, ready to respond to any attacks, which the chairman of the Joint Chiefs have said would be a very poor decision.
—ABC News, 22 June 2025
Jack Rodriquez-Vars, Sacbee.com, 23 June 2025
She is alerted, and gamely steps in front of the curtain.
—Han Ong, New Yorker, 22 June 2025
Shivani Vyas, Better Homes & Gardens, 19 June 2025
While coffee might seem like the obvious choice, newscasters sip all sorts of unexpected beverages to stay alert and refreshed.
—Kyler Alvord, People.com, 18 June 2025
See All Example Sentences for alert
Noun
The shipping industry was placed on high alert on Sunday with warnings that Tehran could retaliate against commercial vessels following US airstrikes against Iran’s nuclear facilities.
—Preston Fore, Fortune, 22 June 2025
Now, forces now remaining on high alert, ready to respond to any attacks, which the chairman of the Joint Chiefs have said would be a very poor decision.
—ABC News, 22 June 2025
Verb
After alerting authorities just before 3 p.m. that day, the remaining hikers were airlifted from the canyon.
—Jack Rodriquez-Vars, Sacbee.com, 23 June 2025
She is alerted, and gamely steps in front of the curtain.
—Han Ong, New Yorker, 22 June 2025
Adjective
Stay alert, though: while some manufacturers market their cookware as dishwasher-safe, Janssen still advises against loading any of them into your appliance.
—Shivani Vyas, Better Homes & Gardens, 19 June 2025
While coffee might seem like the obvious choice, newscasters sip all sorts of unexpected beverages to stay alert and refreshed.
—Kyler Alvord, People.com, 18 June 2025
See All Example Sentences for alert
Recent Examples of Synonyms for alert
Noun
-
While major plot developments have been withheld to preserve the viewing experience, the network has requested spoiler warnings on all reviews.—
Alison Herman,
Variety,
26 June 2025
-
Many of the latest driver-assist safety systems like forward automatic emergency braking and blind spot warning abound in this segment to protect one’s most-precious cargo.—
Jim Gorzelany,
Forbes.com,
26 June 2025
Verb
-
The International Atomic Energy Agency has previously warned that bombing active enrichment sites, particularly Fordow, could pose environmental and health risks.—
Brian Bennett,
Time,
22 June 2025
-
The war between Israel and Iran began its ninth day Saturday as the two countries continued to trade missile attacks, and Iran's foreign minister warned against the U.S. getting actively involved.—
Kate Bartlett,
NPR,
21 June 2025
Adjective
-
How a Cup of Lemonade Led to a Meltdown On Reddit, a mom recounted a recent incident that quickly escalated: While attending a party, the mom in question hoped to keep her 19 month old child awake in order to maintain her regular nap and sleep schedule.—
Elisabeth Sherman,
Parents,
24 June 2025
-
Korean-Style Steak Sauce Cook Mode (Keep screen awake) Ingredients 2 oz.—
Elizabeth Fogarty,
Better Homes & Gardens,
21 June 2025
Adjective
-
The prospect of higher inflation even as present data looks mild has led to a staredown between the Fed, which has advocated for a cautious approach on cutting interest rates in case tariffs do worsen inflation, and Trump, who has aggressively called for big cuts.—
Derek Saul,
Forbes.com,
27 June 2025
-
That’s a problem for investors, who regard Powell as a serious, cautious economist who operates independently of Trump’s political desires.—
Jim Edwards,
Fortune,
26 June 2025
Adjective
-
Lucy’s colleagues refer to men like him—tall, handsome, in finance, intelligent, urbane—as unicorns.—
Katy Waldman,
New Yorker,
21 June 2025
-
Celebrate intelligent risk-taking, not just polished outcomes.—
Bill Fischer,
Forbes.com,
21 June 2025
Adjective
-
The app features guest mode sessions that disappear after use as well as a hidden exit button for quick redirection if an abuser walks into the room.—
Anisha Sircar,
Forbes.com,
27 June 2025
-
Your tongue may be quick to lash out under the Leo moon.—
USA TODAY,
USA Today,
27 June 2025
Noun
-
In early February, Olivier Giroud, the French striker who plays for Los Angeles FC, had his home targeted and $500,000 worth of jewelry and watches stolen, sources said.—
Richard Winton,
Los Angeles Times,
27 June 2025
-
Jeannie was already glancing with impatience at her watch.—
Helen Schulman,
The Atlantic,
26 June 2025
Adjective
-
Bitcoin’s Future Depends on the Integrity of Its Movement If Bitcoin serves as a tool for liberation, its developers, advocates, and holders face an ongoing responsibility to remain vigilant.—
Becca Bratcher,
Forbes.com,
16 June 2025
-
The shark vanished after the attack, and swimmers in the area are advised to remain vigilant.—
Chloe Mayer,
MSNBC Newsweek,
16 June 2025
Cite this Entry
“Alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alert. Accessed 4 Jul. 2025.
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