Australian spelling vs linearise

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

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

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

Australian spelling (verb)	linearise (verb)
	make linear or get into a linear form