final act vs termination

final act

noun
  • A final performance or accomplishment, before one's retirement or ultimate demise. 

  • The last part of a play, film, or narrative in which the strands of the plot are drawn together and matters are explained. 

termination

noun
  • An outcome or result. 

  • The last part of a word; an ending, a desinence; a suffix. 

  • An induced abortion. 

  • The process of firing an employee; ending one's employment at a business for any reason. 

  • An end in time; a conclusion. 

  • An end in space; an edge or limit. 

  • The ending up of a polypeptid chain. 

  • The process of terminating or the state of being terminated. 

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