Meaning : The state of being connected.
Example :
The connection between church and state is inescapable.
Synonyms : connection, link
Meaning : A relation between things or events (as in the case of one causing the other or sharing features with it).
Example :
There was a connection between eating that pickle and having that nightmare.
Synonyms : connection, connexion
The lack of a connection between things.
unconnectedness