ass vs fool

ass and fool both are nouns.

Word	Noun	Adjective	Verb	Adverb
ass	Yes	No	No	No
fool	Yes	No	Yes	No

As nouns, fool is a hypernym of ass; that is, fool is a word with a broader meaning than ass:

Other hypernyms of ass include muggins, sap, saphead, tomfool.

ass (noun)	fool (noun)
slang for sexual intercourse	a person who lacks good judgment
hardy and sure-footed animal smaller and with longer ears than the horse	a person who is gullible and easy to take advantage of
the fleshy part of the human body that you sit on	a professional clown employed to entertain a king or nobleman in the Middle Ages
a pompous fool

ass (verb)	fool (verb)
	indulge in horseplay
	fool or hoax
	spend frivolously and unwisely
	make a fool or dupe of