euthanatise vs Australian spelling

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

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

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

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