Australian spelling vs euthanatise

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

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

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

Australian spelling (verb)	euthanatise (verb)
	intentionally cause the painless death of a person or animal