demoralisation vs Australian spelling

demoralisation and Australian spelling both are nouns.

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

demoralisation (noun)	Australian spelling (noun)
destroying the moral basis for a doctrine or policy	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
depression resulting from an undermining of your morale
a state of disorder and confusion