concealment vs grandstand

concealment

noun
  • The practice of keeping secrets. 

  • protection from observation or surveillance. 

  • The condition of being hidden or concealed. 

grandstand

noun
  • The audience at a public event. 

  • The seating area at a stadium or arena; the bleachers. 

verb
  • To behave dramatically or showily to impress an audience or observers; to pander to a crowd. 

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