desynchronisation vs Australian spelling

desynchronisation and Australian spelling both are nouns.

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

desynchronisation (noun)	Australian spelling (noun)
the relation that exists when things occur at unrelated times	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')