vocalisation vs Australian spelling

vocalisation and Australian spelling both are nouns.

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

vocalisation (noun)	Australian spelling (noun)
the sound made by the vibration of vocal folds modified by the resonance of the vocal tract	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')