postulate vs involve

postulate is a noun but involve is not a noun.

Word	Noun	Adjective	Verb	Adverb
postulate	Yes	No	Yes	No
involve	No	No	Yes	No

As verbs, postulate and involve are synonyms defined as:

Other synonyms of postulate include ask, call for, demand, necessitate, need, require, take.

postulate (noun)	involve (noun)
(logic) a proposition that is accepted as true in order to provide a basis for logical reasoning

postulate (verb)	involve (verb)
take as a given; assume as a postulate or axiom	make complex or intricate or complicated
maintain or assert	occupy or engage the interest of
require as useful, just, or proper	have as a necessary feature
	connect closely and often incriminatingly
	contain as a part
	engage as a participant
	require as useful, just, or proper