American spelling vs capitalization

American spelling and capitalization both are nouns.

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

American spelling (noun)	capitalization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	the act of capitalizing on an opportunity
	the sale of capital stock
	an estimation of the value of a business
	writing in capital letters