imbibe vs gulp

imbibe is not a noun while gulp is a noun.

Word	Noun	Adjective	Verb	Adverb
imbibe	No	No	Yes	No
gulp	Yes	No	Yes	No

As verbs, gulp is a hyponym of imbibe; that is, gulp is a word with a more specific, narrower meaning than imbibe:

imbibe (noun)	gulp (noun)
	a large and hurried swallow
	a spasmodic reflex of the throat made as if in swallowing

imbibe (verb)	gulp (verb)
receive into the mind and retain	utter or make a noise, as when swallowing too quickly
take in liquids	to swallow hurriedly or greedily or in one draught
take (gas, light or heat) into a solution
take in, also metaphorically