Australian spelling vs self-defence

Australian spelling and self-defence both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
self-defence	Yes	No	No	No

Australian spelling (noun)	self-defence (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the act of defending yourself