Australian spelling vs social organisation

Australian spelling and social organisation both are nouns.

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

Australian spelling (noun)	social organisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the people in a society considered as a system organized by a characteristic pattern of relationships