dispose of vs get rid of

dispose of

verb
  • To get rid of. 

  • To transfer to another's control. 

  • To arrange in an orderly way. 

  • To deal with conclusively with a threat or a difficult situation. 

  • To have available, or at one's disposal. 

get rid of

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

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