katzenjammer vs hubbub

katzenjammer and hubbub both are nouns.

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

As nouns, katzenjammer and hubbub are synonyms defined as:

Other synonyms of katzenjammer include brouhaha, uproar.

katzenjammer (noun)	hubbub (noun)
loud confused noise from many sources	loud confused noise from many sources
disagreeable aftereffects from the use of drugs (especially alcohol)