look-in vs viewport

look-in

noun
  • A quick glance. 

  • A chance to participate, compete, or succeed. 

  • A brief visit. 

  • A quick short pass to a receiver running diagonally toward the center of the field. 

viewport

noun
  • A viewing window. 

  • A typically rectangular region representing the range or area currently visible (within a window, screen, etc.). 

verb
  • To clip (an image or region) so that it fits in a viewport. 

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