closing vs sendoff

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. 

sendoff

noun
  • A party for a person (i.e. a fellow employee) who is leaving; a farewell party. 

  • A party to recognize the passing (death) of a friend and allow survivors to reminisce about the person's life. 

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