No, they're not. However, they do have a lot of similarities. Additionally, as World War II dragged on, Nazi Germany largely took control of Fascist Italy, and forced Italy to take Nazi policies as their own, further blurring the lines between the two.
Nazism was essentially just a form of fascism
Fascism
Yes, National Socialism (Nazism) and Communism are both forms of the catch-all term, Fascism.
In every way, as the Nazis were in fact, fascists.
Nazism or National Socialism
The word you're looking for is Fascism.
Nazism is the term usually used for German fascism or nationalism. It stands for the National Socialist German Workers' Party.
desparation of the german people after ww1 and the wall street crash.
The Great Depression, rise of Nazism & Fascism, etc.
Nothing. It is easy to generalise and associate Nazism with Fascism, but the Fascist nations did not play an active role in the Holocaust and arguably Japan did more against the Holocaust than most democracies.
Feudalism and Fascism are not the same, and are pretty dissimilar.
A political stance advocating a Fascist system, such as Nazism, or Fascism, or closely resembling such systems."Fascism should more appropriately be called corporatism because it is the merger of state and corporate power."--Benito Mussolini