n.

1. a relation between things or events    (as in the case of one causing the other or sharing features with it);
   connexion, connectedness
   
   • there was a connection between eating that pickle and having that nightmare
2. the state of being connected;
   link, connectedness
   
   • the connection between church and state is inescapable
3. an instrumentality that connects;
   connexion, connector, connecter, connective
   
   • he soldered the connection
   • he didn't have the right connector between the amplifier and the speakers
4. (usually plural) a person who is influential and to whom you are connected in some way (as by family or friendship)
   
   • he has powerful connections
5. the process of bringing ideas or events together in memory or imagination;
   association, connexion
   
   • conditioning is a form of learning by association
6. a connecting shape;
   connexion, link
7. a supplier (especially of narcotics)
8. shifting from one form of transportation to another;
   connexion
   
   • the plane was late and he missed his connection in Atlanta
9. the act of bringing two things into contact (especially for communication);
   joining, connexion
   
   • the joining of hands around the table
   • there was a connection via the internet