airlift vs jet bridge

airlift

noun
  • Such a flight. 

  • The transportation of troops, civilians or supplies by air, especially in an emergency. 

  • A pipe that is used to suck up objects from the sea bed. 

verb
  • To transport (troops etc) in an airlift. 

jet bridge

noun
  • An elevated corridor connecting an airport to a plane, usually enclosed and used for disembarking and embarking passengers and crew. 

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