built-in vs scrap

built-in

noun
  • Anything (such as a piece of furniture, or a software feature) that is built in, not added as an extra. 

adj
  • Being an essential and permanent part of something. 

  • Being an included feature that normally comes as an extra. 

  • Constructed as a non-detachable part of a larger structure. 

scrap

noun
  • Discarded objects (especially metal) that may be dismantled to recover their constituent materials, junk. 

  • Loose-leaf tobacco of a low grade, such as sweepings left over from handling higher grades. 

  • A (small) piece; a fragment; a detached, incomplete portion. 

  • A fight, tussle, skirmish. 

  • The crisp substance that remains after drying out animal fat. 

  • The smallest amount. 

  • A piece of deep-fried batter left over from frying fish, sometimes sold with chips. 

  • A Hispanic criminal, especially a Mexican or one affiliated with the Sureno gang. 

  • Leftover food. 

verb
  • To discard. 

  • To make into scrap. 

  • to fight 

  • To stop working on indefinitely. 

  • To scrapbook; to create scrapbooks. 

  • To dispose of at a scrapyard. 

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