noun (n)

• acceptance of despair(noun.feeling)

  Synonym:
  surrender
  

  source: wordnet30
• the act of giving up (a claim or office or possession etc.)(noun.communication)

  source: wordnet30
• a formal document giving notice of your intention to resign(noun.communication)

  Example:
  He submitted his resignation as of next month.
  

  source: wordnet30
• The act of resigning or giving up, as a claim, possession, office, or the like; surrender; as, the resignation of a crown or comission.(noun)

  source: webster1913