enjoyment vs laughter

enjoyment

noun
  • An activity that gives pleasure. 

  • The exercise of a legal right. 

  • The condition of enjoying anything. 

  • An enjoyable state of mind. 

laughter

noun
  • A movement (usually involuntary) of the muscles of the laughing face, particularly of the lips, and of the whole body, with a peculiar expression of the eyes, indicating merriment, satisfaction or derision, and usually attended by a sonorous and interrupted expulsion of air from the lungs. 

  • The sound of laughing, produced by air so expelled; any similar sound. 

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