scrutinize vs American spelling

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

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

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

scrutinize (verb)	American spelling (verb)
examine carefully for accuracy with the intent of verification
to look at critically or searchingly, or in minute detail