noun (n)

• an extended communication (often interactive) dealing with some particular topic

  sebuah lanjutan komunikasi (sering interaktif) berhadapan dengan beberapa topik tertentu

  Example:
  The book contains an excellent discussion of modal logic.
  

  Synonym:
  discourse, treatment
  

  source: wordnet30
• an exchange of views on some topic

  pertukaran dari pandangan pada beberapa topik

  Example:
  We had a good discussion.
  

  Synonym:
  give-and-take, word
  

  source: wordnet30
• The act or process of discussing by breaking up, or dispersing, as a tumor, or the like.

  tindakan atau proses membahas oleh putus, atau penyebaran, sebagai tumor, atau sejenisnya.

  source: webster1913