noun
: a unit of that echelon of the United States Air Force that is higher than a wing and lower than an air force and is composed of a headquarters and usually from two to five wings
noun
: a unit of that echelon of the United States Air Force that is higher than a wing and lower than an air force and is composed of a headquarters and usually from two to five wings
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012