failure vs stretching

failure

noun
  • Omission to do something, whether or not it was attempted, especially something that ought to have been done. 

  • State or condition of not meeting a desirable or intended objective, opposite of success. 

  • Bankruptcy. 

  • An object, person or endeavour in a state of failure or incapable of success. 

  • Termination of the ability of an item to perform its required function; breakdown. 

stretching

adj
  • Requiring a high level of effort or performance. 

noun
  • The act by which something is stretched. 

  • A form of physical exercise in which a specific skeletal muscle (or muscle group) is deliberately elongated to its fullest length in order to improve the muscle's felt elasticity and reaffirm comfortable muscle tone. 

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