English to English

noun (n)

• the act of detecting something; catching sight of something

  tindakan mengesan sesuatu; menangkap pandangan dari sesuatu

  Synonym:
  catching, detection, spotting, spying
  

  source: wordnet30
• The act of espying; notice; discovery.

  tindakan espying; pemberitahuan; penemuan.

  source: webster1913