transitive verb 1 : to call (someone) to a state of readiness : warn alerted the school board of a possible teachers' strike alert the authorities 2 : to make (someone) aware of something

We don't want to alarm people unnecessarily, but they should be alerted to potential dangers. A note of formality in his voice alerted her to the fact that others were listening.

To notify of approaching danger or action; warn: a flashing red light that alerted motorists to trouble ahead.

Definition of alert verb from the Oxford Advanced Learner's Dictionary. to warn somebody about a dangerous situation or one that requires immediate action. alert somebody Neighbours quickly …

Dec 5, 2025 · Adjective alerted (comparative more alerted, superlative most alerted) Having been made alert; having been made attentive, alarmed or warned of something coming soon.

Usage Tips: Use "alerted" to describe someone who has been warned about a possible threat or issue.

Alert, vigilant, watchful imply a wide-awake attitude, as of someone keenly aware of his or her surroundings. Alert describes a ready and prompt attentiveness together with a quick intelligence: …

Learn the meaning of Alerted in English, including definitions, examples, translations, and interesting facts. Explore how Alerted is used in different contexts with finesentence.com.

ALERT definition: fully aware and attentive; wide-awake; keen. See examples of alert used in a sentence.

to warn of an impending raid, attack, storm, etc The radio alerted coastal residents to prepare for the hurricane