alert : Idioms & Phrases


air alert

  • noun the time period during which military and civilian agencies are prepared for an enemy air attack
  • noun the condition in which combat aircraft are airborne and ready for an operation
    • aircraft in the Mideast are on air alert
  • noun the warning signal that begins a period of preparation for an enemy air attack
WordNet

emergency alert system

  • noun a federal warning system that is activated by FEMA; enables the President to take over the United States airwaves to warn the whole country of major catastrophic events
    EAS.
WordNet

On the alert

  • on the lookout or watch against attack or danger; ready to act.
Webster 1913

red alert

  • noun the highest level of alert when an attack by the enemy seems imminent (or more generally a state of alert resulting from imminent danger)
WordNet

seizure-alert dog

  • noun a dog that can alert or assist people with seizure disorders
WordNet

strip alert

  • noun a state of readiness for domestic defense aircraft
    • the Air Force will keep fighters on strip alert at bases around the country
WordNet