n One who subscribes to or advocates (neo-Nazism | neo-)Nazism or a similarly fascist, racist, or anti-Semitic ideology; a neo-Nazi.
n (slang|usually|pejorative|sometimes|_|offensive|see usage notes below) One who imposes one’s views on others; one who is considered unfairly oppressive or needlessly strict. (qualifier|also frequently uncapitalised: 'nazi')