liberalization vs American spelling

liberalization and American spelling both are nouns.

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

liberalization (noun)	American spelling (noun)
the act of making less strict	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')