air_alert | ||
1. | [ noun ] the condition in which combat aircraft are airborne and ready for an operation | |
Examples: | "aircraft in the Mideast are on air alert" |
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Related terms: | alert | |
2. | [ noun ] the time period during which military and civilian agencies are prepared for an enemy air attack | |
Related terms: | time_period | |
3. | [ noun ] the warning signal that begins an period of preparation for an enemy air attack | |
Related terms: | alarm | |