airborne vs vaporous

airborne

adj
  • In or carried by the air. 

  • Fitted to an aircraft. 

  • In flight. 

  • Transported by air in an aircraft. 

noun
  • Military infantry intended to be transported by air and delivered to the battlefield by parachute or helicopter. 

vaporous

adj
  • Breathing out or giving off vapour. 

  • Of a thing: covered or hidden by vapour, fog, or mist. 

  • Of a place: filled with vapour; foggy, misty. 

  • Of or relating to vapour; also, having the characteristics or consistency of vapour. 

  • Lacking depth or substance; insubstantial, thoughtless, vague. 

  • Of clothes or fabric: thin and translucent; filmy, gauzy. 

How often have the words airborne and vaporous occurred in a corpus of books? (source: Google Ngram Viewer )