junk vs wreck yard

junk

noun
  • Discarded or waste material; rubbish, trash, garbage. 

  • A Chinese sailing vessel. 

  • The genitalia, especially of a male. 

  • A collection of miscellaneous items of little value. 

  • Any narcotic drug, especially heroin. 

  • Salt beef. 

  • Pieces of old cable or cordage, used for making gaskets, mats, swabs, etc., and when picked to pieces, forming oakum for filling the seams of ships. 

  • Nonsense; gibberish. 

  • Material or resources of a kind lacking commercial value. 

verb
  • To throw away. 

  • To find something for very little money (meaning derived from the term junkshop) 

wreck yard

noun
  • The location of a dismantling business where wrecked or decommissioned vehicles are brought. Their usable parts are sold for use in operating vehicles, while the unusable metal parts, known as scrap metal, are sold to recycling companies. 

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