Christianise vs Australian spelling

Christianise is not a noun while Australian spelling is a noun.

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

Christianise (noun)	Australian spelling (noun)
	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')

Christianise (verb)	Australian spelling (verb)
convert to Christianity