self-organisation vs Australian spelling

self-organisation and Australian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
self-organisation	Yes	No	No	No
Australian spelling	Yes	No	No	No

self-organisation (noun)	Australian spelling (noun)
organizing yourself (especially organizing your own labor union)	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')