initiation vs premiere

initiation

noun
  • The act of initiating, or the process of being initiated or introduced 

  • The first step of transcription or of transduction. 

  • The form or ceremony by which a person is introduced into any society; mode of entrance into an organized body; especially, the rite of admission into a secret society or order. 

premiere

noun
  • In a series of narrative works, the installment that is chronologically set first. 

  • The first episode of a television show or a particular season of that show. 

  • The leading woman of a group, especially in a theatrical cast. 

  • The first showing of a film, play or other form of entertainment, often held as a special event with celebrity guests. 

verb
  • Of a film or play, to play for the first time. 

  • To present a film or play for the first time. 

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