junk vs spoilage

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) 

spoilage

noun
  • The part of something that has spoiled. 

  • The process of spoiling. 

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