ground alert
noun Military.
the state of waiting for orders in or near combat airplanes ready to take to the air at once.
the aircraft standing by during a ground alert.
Origin of ground alert
First recorded in 1960–65
Words nearby ground alert
grotty,
grouch,
grouchy,
grough,
ground,
ground alert,
ground bait,
ground ball,
ground bass,
ground beam,
ground beetle