solve vs lick

solve is not a noun while lick is a noun.

Word	Noun	Adjective	Verb	Adverb
solve	No	No	Yes	No
lick	Yes	No	Yes	No

As verbs, solve and lick are synonyms defined as:

solve and lick: find the solution to (a problem or question) or understand the meaning of

Other synonyms of solve include figure out, puzzle out, work, work out.

solve (noun)	lick (noun)
	touching with the tongue
	(boxing) a blow with the fist
	a salt deposit that animals regularly lick

solve (verb)	lick (verb)
find the solution to (a problem or question) or understand the meaning of	find the solution to (a problem or question) or understand the meaning of
find the solution	take up with the tongue
settle, as of a debt	pass the tongue over
	beat thoroughly and conclusively in a competition or fight