ಅರ್ಥ : The time period during which military and civilian agencies are prepared for an enemy air attack.
ಅರ್ಥ : The condition in which combat aircraft are airborne and ready for an operation.
ಉದಾಹರಣೆ :
Aircraft in the Mideast are on air alert.
ಅರ್ಥ : The warning signal that begins a period of preparation for an enemy air attack.