regularize vs American spelling

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

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

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

regularize (verb)	American spelling (verb)
make regular or more regular
bring into conformity with rules or principles or usage; impose regulations