leading-edge vs limelight

leading-edge

adj
  • Of or pertaining to the leading edge of an airfoil 

  • leading, latest or most up-to-date 

limelight

noun
  • A type of stage lighting once used in theatres and music halls, producing a bright light by the use of incandescent quicklime. 

  • Attention, notice, a starring or central role, present fame. 

verb
  • to illuminate with limelight 

How often have the words leading-edge and limelight occurred in a corpus of books? (source: Google Ngram Viewer )