noun (n)

• the perception that something has occurred or some state exists

  the persepsi bahawa sesuatu telah terjadi atau beberapa negeri wujud

  Synonym:
  detection
  

  source: wordnet30
• becoming aware of something via the senses

  menjadi sadar sesuatu menerusi indera

  Synonym:
  perception
  

  source: wordnet30