radio theater vs American spelling

radio theater and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
radio theater	Yes	No	No	No
American spelling	Yes	No	No	No

radio theater (noun)	American spelling (noun)
a dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD.	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')