disposal vs unloading

disposal

noun
  • A disposing of or getting rid of something. 

  • The power to use something or someone. 

  • A kick or a handball of the ball during a game. 

  • An arrangement, categorization or classification of things. 

unloading

noun
  • The act by which something is unloaded. 

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