/əˌsoʊsiˈeɪʃən/
1.n.a formal organization of people or groups of people
“he joined the Modern Language Association”
2.n.the act of consorting with or joining with others
“you cannot be convicted of criminal guilt by association”
3.n.the state of being connected together as in memory or imagination
“his association of his father with being beaten was too strong to break”