legalisation vs Australian spelling

legalisation and Australian spelling both are nouns.

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

legalisation (noun)	Australian spelling (noun)
the act of making lawful	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')