conventionalise vs Australian spelling

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

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

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

conventionalise (verb)	Australian spelling (verb)
make conventional or adapt to conventions