noun (n)

• absence of light or illumination(noun.state)

  Synonym:
  dark
  Antonym:
  light, lighting
  

  source: wordnet30
• an unilluminated area(noun.location)

  Example:
  He moved off into the darkness.
  

  Synonym:
  dark, shadow
  

  source: wordnet30
• absence of moral or spiritual values(noun.state)

  Example:
  The powers of darkness.
  

  Synonym:
  dark, iniquity, wickedness
  

  source: wordnet30
• an unenlightened state(noun.cognition)

  Example:
  His lectures dispelled the darkness.
  

  source: wordnet30
• having a dark or somber color(noun.attribute)

  Antonym:
  lightness
  

  source: wordnet30
• a swarthy complexion(noun.attribute)

  Synonym:
  duskiness, swarthiness
  

  source: wordnet30
• The absence of light; blackness; obscurity; gloom.(noun)

  source: webster1913