crave vs thirst

crave is not a noun while thirst is a noun.

Word	Noun	Adjective	Verb	Adverb
crave	No	No	Yes	No
thirst	Yes	No	Yes	No

As verbs, crave and thirst are synonyms defined as:

Other synonyms of crave include hunger, lust, starve.

crave (noun)	thirst (noun)
	strong desire for something (not food or drink)
	a physiological need to drink

crave (verb)	thirst (verb)
plead or ask for earnestly	have a craving, appetite, or great desire for
have a craving, appetite, or great desire for	feel the need to drink