randomization vs American spelling

randomization and American spelling both are nouns.

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

randomization (noun)	American spelling (noun)
a deliberately haphazard arrangement of observations so as to simulate chance	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')