advertizing vs American spelling

advertizing and American spelling both are nouns.

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

advertizing (noun)	American spelling (noun)
a public promotion of some product or service	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')