addition vs supplement

addition

noun
  • Anything that is added. 

  • 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. 

  • 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. 

supplement

noun
  • Something added, especially to make up for a deficiency. 

  • A vitamin, herbal extract or chemical compound ingested to meet dietary deficiencies or enhance muscular development. 

  • An additional section of a newspaper devoted to a specific subject. 

  • An angle that, when added to a given angle, makes 180°; a supplementary angle. 

  • A surcharge, additional cost, especially for food in a restaurant. 

  • An extension to a document or publication that adds information, corrects errors or brings up to date. 

verb
  • To provide or make a supplement to something. 

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