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
Natalie Neysa Alund, USA Today, 26 Sep. 2025
Sign up for azcentral newsletter alerts to be in the know.
—Alexandra Hardle, AZCentral.com, 26 Sep. 2025
Cody Godwin, USA Today, 25 Sep. 2025
One particular way to harden your home involves purchasing smart home systems with features that alert you to major problems.
—Kristine Gill, Better Homes & Gardens, 25 Sep. 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
Washington State Patrol issued a statewide alert for the girls on May 31, and following a search, a Chelan County Sheriff's Office deputy found their father's white 2017 GMC Sierra truck near Rock Island Campground, about 40 miles northwest of Wenatchee.
—Natalie Neysa Alund, USA Today, 26 Sep. 2025
Sign up for azcentral newsletter alerts to be in the know.
—Alexandra Hardle, AZCentral.com, 26 Sep. 2025
Verb
This can include guiding someone who is blind, assisting a veteran with PTSD, alerting someone to a blood sugar drop or protecting someone having a seizure.
—Cody Godwin, USA Today, 25 Sep. 2025
One particular way to harden your home involves purchasing smart home systems with features that alert you to major problems.
—Kristine Gill, Better Homes & Gardens, 25 Sep. 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
-
What actions are necessary during a red flag warning?—
CA Weather Bot,
Sacbee.com,
25 Sep. 2025
-
That is why Trump must take the Saudi-Pakistan defense pact not as a rejection, but as a warning shot.—
Firas Maksad,
Time,
25 Sep. 2025
Noun
-
This patience is watchfulness, not idleness.—
Francois Botha,
Forbes.com,
7 Sep. 2025
Verb
-
Passport services could also be delayed, the organization warned.—
Nathan Diller,
USA Today,
29 Sep. 2025
-
Equity advocates warn that the expansion of microschools, especially those reliant on tuition or vouchers, could drain resources and diversity students from neighborhood public schools.—
Preston Fore,
Fortune,
28 Sep. 2025
Adjective
-
Williams and Hawkins will be manning a barista-style espresso station to keep players awake.—
Alec Lewis,
New York Times,
24 Sep. 2025
-
Mark Breckenridge, Huron Valley Ambulance spokesman, said the driver was awake and talking when the ambulance arrived at the scene, but not completely alert.—
Emma George-Griffin,
Freep.com,
22 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,
28 Sep. 2025
-
The heaviest rainfall and wind impacts were forecast for coastal communities within the watch area.—
Hollie Silverman,
MSNBC Newsweek,
28 Sep. 2025
Cite this Entry
“Alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alert. Accessed 2 Oct. 2025.
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