Australian spelling vs appal

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

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

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

Australian spelling (verb)	appal (verb)
	strike with disgust or revulsion
	fill with apprehension or alarm; cause to be unpleasantly surprised