Australian spelling vs misbehaviour

Australian spelling and misbehaviour both are nouns.

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

Australian spelling (noun)	misbehaviour (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	improper or wicked or immoral behavior