noun (n)

• a judgment disposing of the matter without a trial(noun.act)

  Synonym:
  judgement of dismissal, judgment of dismissal
  

  source: wordnet30
• official notice that you have been fired from your job(noun.communication)

  Synonym:
  dismission, pink slip
  

  source: wordnet30
• permission to go; the sending away of someone(noun.communication)

  source: wordnet30
• the termination of someone's employment (leaving them free to depart)(noun.act)

  Synonym:
  discharge, dismission, firing, liberation, release, sack, sacking
  

  source: wordnet30
• Dismission; discharge.(noun)

  source: webster1913