One who has been perverted; one who has turned to error; one who has turned to a twisted sense of values or morals.

A person whose sexual habits are not considered acceptable.

“Those perverts were trying to spy on us while we changed clothes!”

To turn another way; to divert.

To corrupt; to cause to be untrue; corrupted or otherwise impure

“How could stopping someone from killing himself or herself "pervert the course of justice"?”

To misapply, misuse, use for a nefarious purpose

“He has perverted his talents to dishonest gain.”