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
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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
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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
Ron Estes, MSNBC Newsweek, 31 Mar. 2025
Fake Apple virus warnings, security alerts and messages are all tactics used to prompt you to call a number or click on a malicious link.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 30 Mar. 2025
David Garrick, San Diego Union-Tribune, 29 Mar. 2025
Man Says He Was Forced to Choke His Dog to Death After Animal Mauled Him for 45 Minutes
Randle’s son Damien, who lives next door, raced over to help after he was alerted of the attack by his mother’s screams.
—Escher Walcott, People.com, 29 Mar. 2025
Tony Bradley, Forbes.com, 28 Mar. 2025
One ear flopped down while the other stuck straight up to stay alert if any footsteps walked toward the room.
—Paul Du Quenoy, MSNBC Newsweek, 26 Mar. 2025
See All Example Sentences for alert
Noun
While it is widely understood that sleep is critical to mental and physical health, modern bedtime routines increasingly include screens, apps and notifications—all of which may keep the brain on high alert long after lights out.
—Verb
Other recommendations in the audit include subscribing to a service that alerts cities when grants become available and creating a city grants resource library to preserve institutional knowledge.
—Adjective
Every access request, every anomaly, every alert demands scrutiny.
—Recent Examples of Synonyms for alert
Noun
-
After Trump's announcement on Wednesday, some Wall Street firms voiced warnings about a possible recession.—
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Meanwhile, water rescues were underway in flooded parts of Nashville, Tennessee, where the rain could persist for days after an unnerving night of tornado warnings that drained the batteries of some sirens across the city, the fire department said.—
Verb
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Boise warns that could be a problem March 10, 2025 3:46 PM Read Next Boise & Garden City Cities can now enforce bans on people sleeping outside.—
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But analysts warn the rules are murky and the long-term impact hinges on how aggressively the U.S. enforces content tracking.—
Adjective
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Consider a 4-year-old who has been awake for 16,000 hours, LeCun suggests.—
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Neighbors initially complained about the gunshot-style sound of the flag flapping in the wind and keeping them awake at night.—
Adjective
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Dawn Staley, who’s undefeated in NCAA finals, is cautious in taking that fact into consideration.—
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Those with heart conditions, including a recent heart attack or stroke, should also be cautious about taking medications that contain PDE5 inhibitors.30 The safety and side effects of the ingredients in ExtenZe have not been studied in clinical trials.—
Adjective
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Recognizing team members regularly enhances your emotional intelligence (EI) and creates a more emotionally intelligent workplace.—
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There is a troubling amount of survey data that has suggested that even in the contemporary era, there are many people who believe that Black people are inherently less intelligent genetically, and therefore that educational interventions are not likely to be effective.—
Adjective
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App Store updates Those looking for apps in the App Store can see summaries from user reviews to get a quick look at what others are saying, Apple said.—
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Here’s a quick roundup of the latest news from leading denim brands.—
Noun
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Kaia wore a Givenchy by Sarah Burton dress, which features a square neck and ankle-length, paired with black kitten heels, and a simple gold watch.—
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Kaia wore a square-neck dress with low heels and a small watch.—
Adjective
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While the law itself stands firm, its power has always depended on vigilant enforcement.—
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Visitors are advised to be aware of their surroundings, avoid walking or driving at night and be extra vigilant when visiting banks and ATMs.—
Cite this Entry
“Alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alert. Accessed 9 Apr. 2025.
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