noun (n)

• a discrimination between things as different and distinct(noun.cognition)

  Example:
  It is necessary to make a distinction between love and infatuation.
  

  Synonym:
  differentiation
  

  source: wordnet30
• high status importance owing to marked superiority(noun.state)

  Synonym:
  eminence, note, preeminence
  

  source: wordnet30
• a distinguishing quality(noun.attribute)

  Example:
  It has the distinction of being the cheapest restaurant in town.
  

  Synonym:
  characteristic
  

  source: wordnet30
• a distinguishing difference(noun.attribute)

  Example:
  He learned the distinction between gold and lead.
  

  source: wordnet30
• A marking off by visible signs; separation into parts; division.(noun)

  source: webster1913