1 air alert | Definition of air alert

air alert

noun

Definition of air alert

1 : the period during which military and civilian agencies are required to be in readiness for an enemy air attack also : the warning signal that begins such a period
2 : combat or standby status of the aircraft, aircrew, and ground communications system that may have to repel the enemy air attack

First Known Use of air alert

1927, in the meaning defined at sense 1

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