figure out vs guess

figure out is not a noun while guess is a noun.

Word	Noun	Adjective	Verb	Adverb
figure out	No	No	Yes	No
guess	Yes	No	Yes	No

As verbs, guess is a hyponym of figure out; that is, guess is a word with a more specific, narrower meaning than figure out:

figure out: find the solution to (a problem or question) or understand the meaning of
guess: guess correctly; solve by guessing

Other hyponyms of figure out include answer, resolve, riddle, strike, infer, answer, break.

figure out (noun)	guess (noun)
	an estimate based on little or no information
	a message expressing an opinion based on incomplete evidence

figure out (verb)	guess (verb)
find the solution to (a problem or question) or understand the meaning of	expect, believe, or suppose
	judge tentatively or form an estimate of (quantities or time)
	guess correctly; solve by guessing
	put forward, of a guess, in spite of possible refutation