Australian spelling vs chain armour

Australian spelling and chain armour both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
chain armour	Yes	No	No	No

Australian spelling (noun)	chain armour (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	(Middle Ages) flexible armor made of interlinked metal rings