Australian spelling vs calibre

Australian spelling and calibre both are nouns.

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

Australian spelling (noun)	calibre (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a degree or grade of excellence or worth
	diameter of a tube or gun barrel