Australian spelling vs desensitisation

Australian spelling and desensitisation both are nouns.

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

Australian spelling (noun)	desensitisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the process of reducing sensitivity