Nazi

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A member of the National Socialist German Workers' Party, founded in Germany in 1919 and brought to power in 1933 under Adolf Hitler.
• noun An adherent or advocate of policies characteristic of Nazism; a fascist.
• noun Informal A severely intolerant or dictatorial person.
• adjective Of, relating to, controlled by, or typical of the National Socialist German Workers' Party.
• adjective Informal Severely intolerant or dictatorial.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective historical Of or pertaining to the Nazi Party (NSDAP) specifically, or to Nazism, neo-Nazism, or neo-Nazis more generally.
• adjective by extension Racist or anti-Semitic.
• adjective by extension Totalitarian.
• noun historical A member of the National Socialist German Workers Party (Nationalsozialistische Deutsche Arbeiterpartei, commonly called the NSDAP or Nazi Party).
• noun One who subscribes to or advocates (neo-)Nazism or a similarly fascist, racist, or anti-Semitic ideology; a neo-Nazi.
• noun slang, see usage notes below One who imposes one’s views on others; one who is considered unfairly oppressive or needlessly strict. (also frequently uncapitalised: nazi)

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective relating to a form of socialism
• noun a German member of Adolf Hitler's political party
• adjective relating to or consistent with or typical of the ideology and practice of Nazism or the Nazis
• noun derogatory term for a person who is fanatically dedicated to, or seeks to control, some activity, practice, etc.