sophisticate C2+

/səˈfɪstɪkət/ a worldly, cultured person of refined tastes

sophistication C2+

/səˌfɪstɪˈkeɪʃən/ refined worldly knowledge, or complexity of design

sophisticant C2+

/səˈfɪstɪkənt/ one who sophisticates or adulterates; a quibbler (rare)