obscenity vs rump

obscenity and rump both are nouns.

Word	Noun	Adjective	Verb	Adverb
obscenity	Yes	No	No	No
rump	Yes	No	No	No

obscenity (noun)	rump (noun)
an obscene act	the part of an animal that corresponds to the human buttocks
the trait of behaving in an obscene manner	the fleshy part of the human body that you sit on
an offensive or indecent word or phrase	fleshy hindquarters; behind the loin and above the round