fictionalise vs British spelling

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

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

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

fictionalise (verb)	British spelling (verb)
convert into the form or the style of a novel
make into fiction