publication vs showing

publication

noun
  • The act of publishing printed or other matter. 

  • An issue of printed or other matter, offered for sale or distribution. 

  • The communication of information to the general public etc. 

showing

noun
  • A result, a judgement. 

  • An occasion when something is shown. 

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