plagiarise vs Australian spelling

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

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

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

plagiarise (verb)	Australian spelling (verb)
take without referencing from someone else's writing or speech; of intellectual property