dinner theatre vs Australian spelling

dinner theatre and Australian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
dinner theatre	Yes	No	No	No
Australian spelling	Yes	No	No	No

dinner theatre (noun)	Australian spelling (noun)
a theater at which dinner is included in the price of admission	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')