apologise vs Australian spelling

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

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

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

apologise (verb)	Australian spelling (verb)
acknowledge faults or shortcomings or failing
defend, explain, clear away, or make excuses for by reasoning