Australian spelling vs nerve fibre

Australian spelling and nerve fibre both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
nerve fibre	Yes	No	No	No

Australian spelling (noun)	nerve fibre (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a threadlike extension of a nerve cell