internationalisation vs Australian spelling

internationalisation and Australian spelling both are nouns.

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

internationalisation (noun)	Australian spelling (noun)
the act of bringing something under international control	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')