business organisation vs Australian spelling

business organisation and Australian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
business organisation	Yes	No	No	No
Australian spelling	Yes	No	No	No

business organisation (noun)	Australian spelling (noun)
a commercial or industrial enterprise and the people who constitute it	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')