demobilization vs American spelling

demobilization and American spelling both are nouns.

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

demobilization (noun)	American spelling (noun)
act of changing from a war basis to a peace basis including disbanding or discharging troops	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')