closing vs finish line

closing

noun
  • The end or conclusion of something. 

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

  • The final procedure in a house sale, when documents are signed and recorded. 

  • The act by which something is closed. 

adj
  • Pertaining to the finish or ending of a series of events; occurring at the end or after all others. 

finish line

noun
  • The end of a process. 

  • A line marking the end of a race. 

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