nationalise vs Australian spelling

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

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

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

nationalise (verb)	Australian spelling (verb)
put under state control or ownership
make national in character or scope