Australian spelling vs decolonise

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

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

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

Australian spelling (verb)	decolonise (verb)
	grant independence to (a former colony)