noun (n)

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

  Example:
  There was a connection between eating that pickle and having that nightmare.
  

  Synonym:
  connectedness, connexion
  Antonym:
  unconnectedness
  

  source: wordnet30
• the state of being connected(noun.state)

  Example:
  The connection between church and state is inescapable.
  

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

  source: wordnet30
• an instrumentality that connects(noun.artifact)

  Example:
  He soldered the connection.
  

  Synonym:
  connecter, connective, connector, connexion
  

  source: wordnet30
• (usually plural) a person who is influential and to whom you are connected in some way (as by family or friendship)(noun.person)

  Example:
  He has powerful connections.
  

  source: wordnet30
• the process of bringing ideas or events together in memory or imagination(noun.cognition)

  Synonym:
  association, connexion
  

  source: wordnet30
• a connecting shape(noun.shape)

  Synonym:
  connexion, link
  

  source: wordnet30
• a supplier (especially of narcotics)(noun.person)

  source: wordnet30
• shifting from one form of transportation to another(noun.act)

  Example:
  The plane was late and he missed his connection in Atlanta.
  

  Synonym:
  connexion
  

  source: wordnet30
• the act of bringing two things into contact (especially for communication)(noun.act)

  Example:
  There was a connection via the internet.
  

  Synonym:
  connexion, joining
  

  source: wordnet30
• The act of connecting, or the state of being connected; junction; union; alliance; relationship.(noun)

  source: webster1913