dismission vs liberation

dismission

noun
  • The act of dismissing or sending away (someone). 

  • Removal from office; termination of employment or services, or position in ones affections. 

  • The setting aside (of something) from consideration. 

liberation

noun
  • The act of liberating or the state of being liberated. 

  • The achievement of equal rights and status. 

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