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alert

AdjectiveTransitive Verb[C] Countable
past: alertedpp: alerteding: alerting

This word carries a high-energy, high-vigilance feeling. It is not just about being awake, but about being poised for immediate action. It suggests a state of readiness where the senses are sharpened to detect a specific trigger or threat. In modern digital contexts, it has shifted from a human state of mind to a technical notification. While an alert person is focused and attentive, an alert on a phone is a disruptive signal designed to break concentration and demand attention.

Countable when referring to specific warning messages or alarms, such as receiving three security alerts on a phone.

Meanings

Adjective

Quick to notice any unusual and potentially dangerous or difficult circumstances.

"The security guard remained alert throughout the night."

Transitive Verb
[someone]

To warn someone of a danger or a problem.

"The system will alert the operator if the temperature rises."

Noun

A signal or warning that warns of danger or a need for immediate action.

"The government issued a severe weather alert."

Last Updated: May 27, 2026Report an Error