Australian spelling vs yoghurt

Australian spelling and yoghurt both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
yoghurt	Yes	No	No	No

Australian spelling (noun)	yoghurt (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a custard-like food made from curdled milk