Australian spelling vs home theatre

Australian spelling and home theatre both are nouns.

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

Australian spelling (noun)	home theatre (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	television and video equipment designed to reproduce in the home the experience of being in a movie theater