American spelling vs miniaturization

American spelling and miniaturization both are nouns.

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

American spelling (noun)	miniaturization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	act of making on a greatly reduced scale