affiliation

nouns

a social or business relationship
"a valuable financial affiliation"; "he was sorry he had to sever his ties with other members of the team"; "many close associations with England"
is derived from
the act of becoming formally connected or joined
"welcomed the affiliation of the research center with the university"
is derived from
is a type of (narrower)
the act of consorting with or joining with others
"you cannot be convicted of criminal guilt by association"