alert 1 of 3

alert

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verb

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

alert

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adjective

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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

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Synonym Chooser

How does the adjective alert contrast with its synonyms?

Some common synonyms of alert are vigilant, watchful, and wide-awake. While all these words mean "being on the lookout especially for danger or opportunity," alert stresses readiness or promptness in meeting danger or in seizing opportunity.

alert traders anticipated the stock market's slide

When can vigilant be used instead of alert?

The synonyms vigilant and alert are sometimes interchangeable, but vigilant suggests intense, unremitting, wary watchfulness.

eternally vigilant in the safeguarding of democracy

When might watchful be a better fit than alert?

In some situations, the words watchful and alert are roughly equivalent. However, watchful is the least explicit term.

the watchful eye of the department supervisor

When could wide-awake be used to replace alert?

The words wide-awake and alert can be used in similar contexts, but wide-awake applies to watchfulness for opportunities and developments more often than dangers.

wide-awake companies latched onto the new technology

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
Noun
Do not burn debris or other items during an air quality alert. Ca Weather Bot, Sacramento Bee, 6 Mar. 2025 To monitor other local risk, residents are advised to sign up for county alert systems and to monitor agencies’ social media. Bay Area Weather Report, The Mercury News, 6 Mar. 2025
Verb
Police dogs alerted officers to more than six tons of cocaine concealed under bananas in a port outside Guayaquil last July, officials reported. David Culver, CNN, 5 Mar. 2025 Kelly McClanahan, an attorney representing plaintiffs in a lawsuit claiming DOGE’s setup doesn’t comply with federal law, submitted a new court filing alerting the judge to Trump’s remarks minutes after his speech concluded. Zach Schonfeld, The Hill, 5 Mar. 2025
Adjective
These processes also should be welcomed by Americans alert to the health conditions that Kennedy has set out as his starting priorities: rising rates of chronic illness, childhood obesity, and medication of children. Michael Bernick, Forbes, 4 Mar. 2025 Original Price: $19.99 Sale Price: $9.99 (50% off) True Wireless Bone Conduction Earphones These earphones conduct sound to your eardrums via your cheekbones, giving your ear canals a break and keeping you alert to outside sounds while still furnishing hi-fi audio. Ho Lin, Miami Herald, 3 Mar. 2025 See All Example Sentences for alert
Recent Examples of Synonyms for alert
Noun
  • The other recent Google change that now comes into play (no pun intended) is Play Store’s quality warnings, which focus on poor reviews and uninstalls amongst other things.
    Zak Doffman, Forbes, 26 Feb. 2025
  • The State Department has issued a travel warning for U.S. citizens in Tamaulipas, citing high crime and kidnappings amid ongoing violence between drug cartels.
    Louis Casiano, Fox News, 26 Feb. 2025
Verb
  • The first of two back-to-back atmospheric rivers will spread rain across San Diego County from Wednesday afternoon to early Thursday, before a second wave follows Thursday night, says the National Weather Service, which also warned of possible lightning west of the mountains.
    Gary Robbins, San Diego Union-Tribune, 5 Mar. 2025
  • Before the address started, the House Freedom Caucus posted on X warning Democrats they would be censured if there were any disruptive actions made.
    Lauren Green, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 5 Mar. 2025
Adjective
  • The idea is to match daylight to the period that most people are awake.
    Callum Booth, Forbes, 9 Mar. 2025
  • Blue light from screens and other sources can keep your brain awake and interfere with the production of melatonin, the sleep hormone.
    Kristen Rogers, CNN, 9 Mar. 2025
Adjective
  • But just as smartphones and the internet are powerful tools to broaden their horizons, parents and caregivers are right to be cautious about exactly what their teens are posting on the day-to-day.
    Ella Cerón, Parents, 27 Feb. 2025
  • The market remains cautious about suggesting any change could come soon.
    Lori Ann LaRocco, CNBC, 27 Feb. 2025
Adjective
  • Put differently, intelligent onboarding can enable financial service providers to reach thin-file and difficult-to-identify demographics while reducing dropout rates.
    James Bruni, Forbes, 5 Mar. 2025
  • What’s more, Asian elephants are highly social, highly intelligent, and endangered, raising intractable ethical obstacles to experimenting on them.
    Jeffrey Kluger, TIME, 4 Mar. 2025
Adjective
  • But don’t be too quick to go for short-term solutions.
    Ray Titus, Forbes, 27 Feb. 2025
  • Austin-Healey was quick to capitalize on the Sprite’s sporting success.
    Tim Pitt, Robb Report, 27 Feb. 2025
Noun
  • Having said this, given some of the allegations against Wallace are alleged to have happened on her watch, this could count against her.
    Max Goldbart, Deadline, 27 Feb. 2025
  • They were asked to take off their smart watches and to take a pledge of integrity.
    Clara-Sophia Daly, Miami Herald, 27 Feb. 2025
Adjective
  • Even in a market full of whales and insiders, everyday investors can still succeed by staying vigilant, sticking to sound strategies, and keeping a long-term perspective.
    Shahar Ziv, Forbes, 3 Mar. 2025
  • With scammers becoming more sophisticated each year, the IRS is urging taxpayers to stay vigilant and take extra precautions when filing their returns.
    Dan Perry, Newsweek, 1 Mar. 2025

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Cite this Entry

“Alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alert. Accessed 12 Mar. 2025.

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