English dictionary

air alert

/(@)/r_/@/'l/[@]/rt/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

noun

the time period during which military and civilian agencies are prepared for an enemy air attack

noun.time

Source: WordNet 3.0
the condition in which combat aircraft are airborne and ready for an operation

noun.state

Examples
Aircraft in the Mideast are on air alert.

Source: WordNet 3.0
the warning signal that begins a period of preparation for an enemy air attack

noun.communication

Source: WordNet 3.0