noun (n)

• the state of being connected(noun.state)

  Synonym:
  connection, link
  Antonym:
  disconnectedness, disconnection, disjunction, disjuncture
  

  source: wordnet30
• a relation between things or events (as in the case of one causing the other or sharing features with it)(noun.linkdef)

  Synonym:
  connection, connexion
  Antonym:
  unconnectedness
  

  source: wordnet30