change vs preserve

change

verb
  • To make something into something else. 

  • To replace one's clothing. 

  • To replace the clothing of (the one wearing it). 

  • To change hand while riding (a horse). 

  • To transfer to another vehicle (train, bus, etc.) 

  • To become something different. 

  • To replace. 

noun
  • The process of becoming different. 

  • A change-up pitch. 

  • An amount of cash, usually in the form of coins, but sometimes inclusive of paper money. 

  • Small denominations of money given in exchange for a larger denomination. 

  • Balance of money returned from the sum paid after deducting the price of a purchase. 

  • A transfer between vehicles. 

  • Any order in which a number of bells are struck, other than that of the diatonic scale. 

  • A replacement. 

preserve

verb
  • To save from decay by the use of some preservative substance, such as sugar or salt; to season and prepare (fruits, meat, etc.) for storage. 

  • To maintain throughout; to keep intact. 

  • To protect; to keep from harm or injury. 

noun
  • An activity with restricted access. 

  • A sweet spread made of any of a variety of fruits. 

  • A reservation, a nature preserve. 

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