Australian spelling vs unionise

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

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

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

Australian spelling (verb)	unionise (verb)
	form or join a union
	recruit for a union or organize into a union