intelligibility vs joke

intelligibility

noun
  • The quality of recorded speech of every word being understandable. 

  • That which is intelligible; the degree to which something is intelligible. 

joke

verb
  • To do or say something for amusement rather than seriously. 

  • To dupe in a friendly manner for amusement; to mess with, play with. 

noun
  • An amusing story. 

  • The root cause or main issue, especially an unexpected one 

  • A laughably worthless thing or person; a sham. 

  • Something that is far easier or far less challenging than expected. 

  • Something said or done for amusement, not in seriousness. 

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