Australian spelling vs immunisation

Australian spelling and immunisation both are nouns.

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

Australian spelling (noun)	immunisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the act of making immune (especially by inoculation)