bum vs obscenity

bum and obscenity both are nouns.

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

bum (noun)	obscenity (noun)
the fleshy part of the human body that you sit on	an obscene act
a vagrant	the trait of behaving in an obscene manner
a person who is deemed to be despicable or contemptible	an offensive or indecent word or phrase
person who does no work

bum (adjective)	obscenity (adjective)
of very poor quality; flimsy

bum (verb)	obscenity (verb)
ask for and get free; be a parasite
be lazy or idle