solemnisation vs Australian spelling

solemnisation and Australian spelling both are nouns.

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

solemnisation (noun)	Australian spelling (noun)
the public performance of a sacrament or solemn ceremony with all appropriate ritual	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')