Australian spelling vs civilisation

Australian spelling and civilisation both are nouns.

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

Australian spelling (noun)	civilisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the quality of excellence in thought and manners and taste
	a society in an advanced state of social development (e.g., with complex legal and political and religious organizations)
	a particular society at a particular time and place
	the social process whereby societies achieve an advanced stage of development and organization