noun (n)

• the calculated use of violence (or the threat of violence) against civilians in order to attain goals that are political or religious or ideological in nature; this is done through intimidation or coercion or instilling fear

  dihitung menggunakan kekerasan (atau ancaman keganasan) melawan warga sipil demi mencapai matlamat yang politik atau agama atau pengikut ideologi secara alami; ini dilakukan melalui intimidasi atau paksaan atau menanamkan ketakutan

  Synonym:
  act of terrorism, terrorist act
  

  source: wordnet30
• The act of terrorizing, or state of being terrorized; a mode of government by terror or intimidation.

  tindakan terrorising, atau keadaan menjadi diteror; a mod kerajaan dengan ketakutan atau intimidasi.

  source: webster1913