demobilisation vs Australian spelling

demobilisation and Australian spelling both are nouns.

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

demobilisation (noun)	Australian spelling (noun)
act of changing from a war basis to a peace basis including disbanding or discharging troops	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')