American spelling vs immovable

American spelling and immovable both are nouns.

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

American spelling (noun)	immovable (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	property consisting of houses and land

American spelling (adjective)	immovable (adjective)
	not able or intended to be moved