American spelling vs world organization

American spelling and world organization both are nouns.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
world organization	Yes	No	No	No

American spelling (noun)	world organization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	an international alliance involving many different countries