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

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First Known Use of air alert

1927, in the meaning defined at sense 1

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Dictionary Entries near air alert

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Aira

airable

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airampo

airan

air-atomic

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The first known use of air alert was in 1927

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