exteriorise vs Australian spelling

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

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

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

exteriorise (verb)	Australian spelling (verb)
make external or objective, or give reality to