Australian spelling vs good humour

Australian spelling and good humour both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
good humour	Yes	No	No	No

Australian spelling (noun)	good humour (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a cheerful and agreeable mood