noun (n)

• the act of subjugating by cruelty

  tindakan subjugating oleh kekejaman

  Example:
  The tyrant's oppression of the people.
  

  Synonym:
  subjugation
  

  source: wordnet30
• the state of being kept down by unjust use of force or authority:

  keadaan yang disimpan oleh pasukan tidak adil menggunakan kuasa paksaan atau:

  Example:
  After years of oppression they finally revolted.
  

  source: wordnet30
• a feeling of being oppressed

  perasaan berada tertindas

  Synonym:
  oppressiveness
  

  source: wordnet30
• The act of oppressing, or state of being oppressed.

  tindakan menindas, atau keadaan menjadi tertindas.

  source: webster1913