desensitise vs Australian spelling

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

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

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

desensitise (verb)	Australian spelling (verb)
make insensitive
cause not to be sensitive