subsidisation vs Australian spelling

subsidisation and Australian spelling both are nouns.

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

subsidisation (noun)	Australian spelling (noun)
the act of providing a subsidy	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
money (or other benefits) obtained as a subsidy