Australian spelling vs relativise

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

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

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

Australian spelling (verb)	relativise (verb)
	consider or treat as relative