Alert Definition–adjective | 1. | fully aware and attentive; wide-awake; keen: an alert mind. | –noun | 3. |
1351
an attitude of vigilance, readiness, or caution, as before an expected attack. | | 4. | a warning or alarm of an impending military attack, a storm, etc.: We'd just boarded the bus when the alert sounded. | | 5. | the period during which such a warning or alarm is in effect. | –verb (used with object) | 6. | to warn (troops, ships, etc.) to prepare for action. | | 7. | to warn of an impending raid, attack, storm, etc.: The radio alerted coastal residents to prepare for the hurricane. | | 8. | to advise or warn; cause to be on guard: to alert gardeners to the dangers of some pesticides. | —Idiom | 9. | on the alert, on guard against danger; in readiness; vigilant: The state police are on the alert for an escaped convict believed to be in the area. | |
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