particularization vs American spelling

particularization and American spelling both are nouns.

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

particularization (noun)	American spelling (noun)
an individualized description of a particular instance	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')