cauterisation vs Australian spelling

cauterisation and Australian spelling both are nouns.

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

cauterisation (noun)	Australian spelling (noun)
the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')