cashier vs get rid of

cashier

verb
  • To discard, put away. 

  • To work as a cashier (at a till or receiving payment) 

  • To annul. 

noun
  • One who works at a till or receives payments. 

  • Person in charge of the cash of a business or bank. 

get rid of

verb
  • to rid oneself of; dispose (of); to remove; to abolish; to lose 

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