noun (n)

• the state of being included(noun.state)

  Antonym:
  exclusion
  

  source: wordnet30
• the relation of comprising something(noun.linkdef)

  Example:
  He admired the inclusion of so many ideas in such a short work.
  

  Synonym:
  comprehension
  

  source: wordnet30
• any small intracellular body found within another (characteristic of certain diseases)(noun.object)

  Example:
  An inclusion in the cytoplasm of the cell.
  

  Synonym:
  cellular inclusion, inclusion body
  

  source: wordnet30
• the act of including(noun.act)

  source: wordnet30
• The act of including, or the state of being included; limitation; restriction; as, the lines of inclusion of his policy.(noun)

  source: webster1913