Definitions of sophisticate:

• noun:   a worldly-wise person
• verb:   make less natural or innocent

  Example: "Their manners had sophisticated the young girls"

• verb:   make more complex or refined

  Example: "A sophisticated design"

• verb:   alter and make impure, as with the intention to deceive

  Example: "Sophisticate rose water with geraniol"

• verb:   practice sophistry; change the meaning of or be vague about in order to mislead or deceive