guess vs infer

guess is a noun but infer is not a noun.

Word	Noun	Adjective	Verb	Adverb
guess	Yes	No	Yes	No
infer	No	No	Yes	No

As verbs, guess and infer are synonyms defined as:

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

guess (verb)	infer (verb)
expect, believe, or suppose	reason by deduction; establish by deduction
judge tentatively or form an estimate of (quantities or time)	believe to be the case
guess correctly; solve by guessing	guess correctly; solve by guessing
put forward, of a guess, in spite of possible refutation	conclude by reasoning; in logic
	draw from specific cases for more general cases