n.
1.the state of being allied or confederated
2.a connection based on kinship or marriage or common interest
3.an organization of people (or countries) involved in a pact or treaty
4.a formal agreement establishing an association or alliance between nations or other groups to achieve a particular aim
5.the act of forming an alliance or confederation
Idiom of the Day
for all I know
according to the information that I have
"For all I know, my friend may have already quit his job."