Australian spelling vs business organisation

Australian spelling and business organisation both are nouns.

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

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