sun parlour vs Australian spelling

sun parlour and Australian spelling both are nouns.

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

sun parlour (noun)	Australian spelling (noun)
a room enclosed largely with glass and affording exposure to the sun	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')