confuse vs confusion

confuse is not a noun while confusion is a noun.

Word	Noun	Adjective	Verb	Adverb
confuse	No	No	Yes	No
confusion	Yes	No	No	No

confuse (noun)	confusion (noun)
	a mistake that results from taking one thing to be another
	an act causing a disorderly combination of elements with identities lost and distinctions blended
	a mental state characterized by a lack of clear and orderly thought and behavior
	a feeling of embarrassment that leaves you confused
	disorder resulting from a failure to behave predictably

confuse (verb)	confusion (verb)
make unclear, indistinct, or blurred
mistake one thing for another
be confusing or perplexing to; cause to be unable to think clearly
assemble without order or sense
cause to feel embarrassment