eat up vs tire

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

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

As verbs, tire is a hyponym of eat up; that is, tire is a word with a more specific, narrower meaning than eat up:

eat up (noun)	tire (noun)
	hoop that covers a wheel

eat up (verb)	tire (verb)
finish eating all the food on one's plate or on the table	lose interest or become bored with something or somebody
use up (resources or materials)	exhaust or get tired through overuse or great strain or stress
enclose or envelop completely, as if by swallowing	cause to be bored
	deplete