radio theatre vs Canadian spelling

radio theatre and Canadian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
radio theatre	Yes	No	No	No
Canadian spelling	Yes	No	No	No

radio theatre (noun)	Canadian spelling (noun)
a dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD.	English orthography used in Canada (characterized by 'analyze', 'centre', 'useable')