singularise vs Australian spelling

singularise is not a noun while Australian spelling is a noun.

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

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

singularise (verb)	Australian spelling (verb)
distinguish as singular