lexicalise vs Australian spelling

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

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

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

lexicalise (verb)	Australian spelling (verb)
make or coin into a word or accept a new word into the lexicon of a language