conceptualization vs American spelling

conceptualization and American spelling both are nouns.

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

conceptualization (noun)	American spelling (noun)
inventing or contriving an idea or explanation and formulating it mentally	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')
an elaborated concept