confusion vs confuse

confusion is a noun but confuse is not a noun.

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

confusion (noun)	confuse (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

confusion (verb)	confuse (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