All 5 Uses

Hitler
in
Catch-22
(Edited)

Captain Black knew he was a subversive because he wore eyeglasses and used words like panacea and utopia, and because he disapproved of Adolf Hitler, who had done such a great job of combating un-American activities in Germany.
Chpt 4

Adolf Hitler = German Nazi dictator who murdered millions
Why is Hitler?
Chpt 4 *

Hitler = German Nazi dictator during World War II who murdered millions of Jews and others who were not of the Aryan race
There was Hitler, Mussolini and Tojo, for example, and they were all out to kill him.
Chpt 17

Hitler = German Nazi dictator who murdered millions
When the Germans marched into the city, I danced in the streets like a youthful ballerina and shouted, "Heil Hitler!" until my lungs were hoarse.
Chpt 23
When war broke out, Nately's family decided that he would enlist in the armed forces, since he was too young to be placed in the diplomatic service, and since his father had it on excellent authority that Russia was going to collapse in a matter of weeks or months and that Hitler, Churchill, Roosevelt, Mussolini, Gandhi, Franco, Peron and the Emperor of Japan would then all sign a peace treaty and live together happily ever after.
Chpt 23

Definitions:

(1) (Hitler as in: Adolf Hitler)
German Nazi dictator during World War II; murdered millions of Jews and others who were not of the Aryan race (1889-1945)
(2) (meaning too rare to warrant focus)