excretion vs arsehole

excretion and arsehole both are nouns.

Word	Noun	Adjective	Verb	Adverb
excretion	Yes	No	No	No
arsehole	Yes	No	No	No

excretion (noun)	arsehole (noun)
the bodily process of discharging waste matter	vulgar slang for anus
waste matter (as urine or sweat but especially feces) discharged from the body