put forward vs posit

put forward is not a noun while posit is a noun.

Word	Noun	Adjective	Verb	Adverb
put forward	No	No	Yes	No
posit	Yes	No	Yes	No

As verbs, put forward and posit are synonyms defined as:

Other synonyms of put forward include state, submit.

put forward (noun)	posit (noun)
	(logic) a proposition that is accepted as true in order to provide a basis for logical reasoning

put forward (verb)	posit (verb)
put before	take as a given; assume as a postulate or axiom
propose as a candidate for some honor	put before
summon into action or bring into existence, often as if by magic	put (something somewhere) firmly
insist on having one's opinions and rights recognized