eat up vs fool

eat up is not a noun while fool is a noun.

Word	Noun	Adjective	Verb	Adverb
eat up	No	No	Yes	No
fool	Yes	No	Yes	No

eat up (noun)	fool (noun)
	a person who lacks good judgment
	a person who is gullible and easy to take advantage of
	a professional clown employed to entertain a king or nobleman in the Middle Ages

eat up (verb)	fool (verb)
finish eating all the food on one's plate or on the table	indulge in horseplay
use up (resources or materials)	fool or hoax
enclose or envelop completely, as if by swallowing	spend frivolously and unwisely
	make a fool or dupe of