categorize vs American spelling

categorize is not a noun while American spelling is a noun.

Word	Noun	Adjective	Verb	Adverb
categorize	No	No	Yes	No
American spelling	Yes	No	No	No

categorize (noun)	American spelling (noun)
	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

categorize (verb)	American spelling (verb)
place into or assign to a category