Australian spelling vs billiard parlour

Australian spelling and billiard parlour both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
billiard parlour	Yes	No	No	No

Australian spelling (noun)	billiard parlour (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a room in which billiards is played