announce vs pronounce

announce

verb
  • to pronounce; to declare by judicial sentence 

  • to give public notice, especially for the first time; to make known 

pronounce

verb
  • To declare formally, officially or ceremoniously. 

  • To pronounce dead. 

  • To pass judgment. 

  • To sound like. 

  • To produce the components of speech. 

  • To declare authoritatively, or as a formal expert opinion. 

  • To sound out (a word or phrase); to articulate. 

  • To read aloud. 

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