sober up vs drink

sober up is not a noun while drink is a noun.

Word	Noun	Adjective	Verb	Adverb
sober up	No	No	Yes	No
drink	Yes	No	Yes	No

sober up (noun)	drink (noun)
	the act of drinking alcoholic beverages to excess
	the act of swallowing
	any liquid suitable for drinking
	a single serving of a beverage
	any large deep body of water

sober up (verb)	drink (verb)
become sober after excessive alcohol consumption	be fascinated or spell-bound by; pay close attention to
become more realistic	take in liquids
	consume alcohol
	drink excessive amounts of alcohol; be an alcoholic
	propose a toast to