overcapitalization vs American spelling

overcapitalization and American spelling both are nouns.

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

overcapitalization (noun)	American spelling (noun)
(business) too much capitalization (the sale of more stock than the business warrants)	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')