Australian spelling vs lexicalise

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

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

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

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