British spelling vs dinner theatre

British spelling and dinner theatre both are nouns.

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

British spelling (noun)	dinner theatre (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	a theater at which dinner is included in the price of admission