noun (n)

• a tract of land with few or no trees in the middle of a wooded area(noun.location)

  Synonym:
  glade
  

  source: wordnet30
• the act of freeing from suspicion(noun.act)

  source: wordnet30
• the act of removing solid particles from a liquid(noun.act)

  Synonym:
  clarification
  

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

  source: webster1913