Australian spelling vs secularise

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

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

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

Australian spelling (verb)	secularise (verb)
	make secular and draw away from a religious orientation