hangover vs katzenjammer

hangover and katzenjammer both are nouns.

Word	Noun	Adjective	Verb	Adverb
hangover	Yes	No	No	No
katzenjammer	Yes	No	No	No

As nouns, hangover and katzenjammer are synonyms defined as:

hangover and katzenjammer: disagreeable aftereffects from the use of drugs (especially alcohol)

hangover (noun)	katzenjammer (noun)
something that has survived from the past	loud confused noise from many sources
an official who remains in office after his term	disagreeable aftereffects from the use of drugs (especially alcohol)
disagreeable aftereffects from the use of drugs (especially alcohol)