S: (n) association (the state of being connected together as in memory or imagination) "his association of his father with being beaten was too strong to break"
S: (n) marriage (a close and intimate union) "the marriage of music and dance"; "a marriage of ideas"
S: (n) syncretism (the union (or attempted fusion) of different systems of thought or belief (especially in religion or philosophy)) "a syncretism of material and immaterial theories"