noun (n)

• a technical system of symbols used to represent special things

  sebuah teknikal sistem simbol digunakan untuk mewakili hal istimewa

  Synonym:
  notational system
  

  source: wordnet30
• a comment or instruction (usually added)

  komen atau pengajaran (biasanya ditambah)

  Example:
  He added a short notation to the address on the envelope.
  

  Synonym:
  annotation, note
  

  source: wordnet30
• the activity of representing something by a special system of marks or characters

  aktivitas mewakili sesuatu yang spesial oleh sistem tanda atau aksara

  source: wordnet30
• The act or practice of recording anything by marks, figures, or characters.

  tindakan atau praktek merekod segalanya dengan tanda, angka, atau aksara.

  source: webster1913