final vs opening

final

noun
  • The tonic or keynote of a Gregorian mode, and hence the final note of any conventional melody played in that mode. 

  • The last round, game or match in a contest, after which the winner is determined. 

  • A final examination; a test or examination given at the end of a term or class; the test that concludes a class. 

  • A final examination taken at the end of the final year of an undergraduate course, which contributes towards a student's degree classification. 

  • The final part of a syllable, the combination of medial and rime in phonetics and phonology. 

adj
  • Word-final; occurring at the end of a word. 

  • Respecting an end or object to be gained; respecting the purpose or ultimate end in view. 

  • Conclusive; decisive. 

  • Last; ultimate. 

  • Expressing purpose; as in the term final clause. 

opening

noun
  • The first few measures of a musical composition. 

  • The first performance of a show or play by a particular troupe. 

  • A gap permitting passage through. 

  • The initial period when a show at an art gallery or museum is first opened, especially the first evening. 

  • A vacant position, especially in an array. 

  • An unoccupied employment position. 

  • In mathematical morphology, the dilation of the erosion of a set. 

  • An act or instance of making or becoming open. 

  • A time available in a schedule. 

  • An opportunity, as in a competitive activity. 

  • An act or instance of beginning. 

  • The first few moves in a game. 

adj
  • Pertaining to the start or beginning of a series of events. 

  • describing the first period of play, usually up to the fall of the first wicket; describing a batsman who opens the innings or a bowler who opens the attack 

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