appetizing vs American spelling

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

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

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

appetizing (adjective)	American spelling (adjective)
appealing to or stimulating the appetite especially in appearance or aroma