American spelling vs ring armor

American spelling and ring armor both are nouns.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
ring armor	Yes	No	No	No

American spelling (noun)	ring armor (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	(Middle Ages) flexible armor made of interlinked metal rings