Australian spelling vs severalise

Australian spelling is a noun but severalise is not a noun.

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

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

Australian spelling (verb)	severalise (verb)
	mark as different
	distinguish or separate