noun (n)

• the power to withstand hardship or stress(noun.attribute)

  Example:
  The marathon tests a runner's endurance.
  

  source: wordnet30
• a state of surviving; remaining alive(noun.state)

  Synonym:
  survival
  

  source: wordnet30
• A state or quality of lasting or duration; lastingness; continuance.(noun)

  source: webster1913