American spelling vs solarization

American spelling and solarization both are nouns.

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

American spelling (noun)	solarization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	exposure to the rays of the sun