lexicalise vs British spelling

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

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

lexicalise (noun)	British spelling (noun)
	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

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