addition vs deletion

addition

noun
  • The act of adding anything. 

  • The arithmetic operation of adding. 

  • A dot at the right side of a note as an indication that its sound is to be lengthened one half. 

  • Anything that is added. 

  • A title annexed to a person's name to identify him or her more precisely. 

  • Something added to a coat of arms, as a mark of honour. 

deletion

noun
  • An item that has been or will be deleted. 

  • An act of killing or murder. 

  • The act of deleting. 

  • A mutation in which a gene, or other section of DNA, is removed from a chromosome. 

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