filth vs have sex

filth is a noun but have sex is not a noun.

Word	Noun	Adjective	Verb	Adverb
filth	Yes	No	No	No
have sex	No	No	Yes	No

filth (noun)	have sex (noun)
an offensive or indecent word or phrase
a state characterized by foul or disgusting dirt and refuse
anything regarded as making something unclean
any substance considered disgustingly foul or unpleasant

filth (verb)	have sex (verb)
	have sexual intercourse with