brutalisation vs Australian spelling

brutalisation and Australian spelling both are nouns.

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

brutalisation (noun)	Australian spelling (noun)
an act that makes people cruel or lacking normal human qualities	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
the activity of treating someone savagely or viciously
the condition of being treated in a cruel and savage manner