Australian spelling vs overcapitalisation

Australian spelling and overcapitalisation both are nouns.

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

Australian spelling (noun)	overcapitalisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	(business) too much capitalization (the sale of more stock than the business warrants)