have intercourse vs obscenity

have intercourse is not a noun while obscenity is a noun.

Word	Noun	Adjective	Verb	Adverb
have intercourse	No	No	Yes	No
obscenity	Yes	No	No	No

have intercourse (noun)	obscenity (noun)
	an obscene act
	the trait of behaving in an obscene manner
	an offensive or indecent word or phrase

have intercourse (verb)	obscenity (verb)
have sexual intercourse with