connection, connexion, connectedness -- (a relation between things or events (as in the case of one causing the other or sharing features with it); "there was a connection between eating that pickle and having that nightmare")
association, connection, connexion -- (the process of bringing ideas or events together in memory or imagination; "conditioning is a form of learning by association")
connection, connexion, connector, connecter, connective -- (an instrumentality that connects; "he soldered the connection"; "he didn't have the right connector between the amplifier and the speakers")
connection, connexion -- (shifting from one form of transportation to another; "the plane was late and he missed his connection in Atlanta")
joining, connection, connexion -- (the act of bringing two things into contact (especially for communication); "the joining of hands around the table"; "there was a connection via the internet")