visualization vs American spelling

visualization and American spelling both are nouns.

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

visualization (noun)	American spelling (noun)
a mental image that is similar to a visual perception	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')