British spelling vs appal

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

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

British spelling (noun)	appal (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

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