noun (n)

• a portrayal of something as ideal(noun.act)

  Example:
  The idealization of rural life was very misleading.
  

  Synonym:
  glorification, idealisation
  

  source: wordnet30
• (psychiatry) a defense mechanism that splits something you are ambivalent about into two representations--one good and one bad(noun.process)

  Synonym:
  idealisation
  

  source: wordnet30
• something that exists only as an idea(noun.cognition)

  source: wordnet30
• The act or process of idealizing.(noun)

  source: webster1913