noun (n)

• the action of accomplishing something(noun.act)

  Synonym:
  achievement
  

  source: wordnet30
• an ability that has been acquired by training(noun.cognition)

  Synonym:
  acquirement, acquisition, attainment, skill
  

  source: wordnet30
• The act of accomplishing; entire performance; completion; fulfillment; as, the accomplishment of an enterprise, of a prophecy, etc.(noun)

  source: webster1913