Australian spelling vs moustache

Australian spelling and moustache both are nouns.

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

Australian spelling (noun)	moustache (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	an unshaved growth of hair on the upper lip