noun (n)

• an act of deliberate betrayal

  kewujudan disengaja pengkhianatan

  Synonym:
  perfidy, treachery, treason
  

  source: wordnet30
• the quality of aiding an enemy

  kualitas membantu musuh

  source: wordnet30
• The act or the result of betraying.

  tindakan atau keputusan untuk mengkhianati.

  source: webster1913