rehearsal vs tryout

rehearsal

noun
  • The practicing of something which is to be performed before an audience, usually to test or improve the interaction between several participating people, or to allow technical adjustments with respect to staging to be done. 

  • The act of rehearsing or contriving something; the fact of something's being rehearsed. 

  • A preparatory activity analogous to the rehearsal of a show. 

tryout

noun
  • A test of the suitability or effectiveness of a person or thing, especially an audition for a performer or athlete, or the advance staging of a play at a small theatre. 

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