annex vs site

annex

verb
  • To add something to another thing, especially territory; to incorporate. 

  • To attach or connect, as a consequence, condition, etc. 

  • To join; to be united. 

noun
  • An appendix to a book or document. 

  • An addition to the territory of a country or state, from a neighbouring country or state, normally by military force. 

  • An addition, an extension. 

  • An addition or extension to a building. 

site

verb
  • To situate or place a building or construction project. 

noun
  • The posture or position of a thing. 

  • A computer installation, particularly one associated with an intranet or internet service or telecommunications. 

  • A part of the body which has been operated on. 

  • A place fitted or chosen for any certain permanent use or occupation 

  • The place where anything is fixed; situation; local position 

  • A category together with a choice of Grothendieck topology. 

  • Region of a protein, a piece of DNA or RNA where chemical reactions take place. 

  • A website. 

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