American spelling vs randomization

American spelling and randomization both are nouns.

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

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