fictionalisation vs fictionalise

fictionalisation is a noun but fictionalise is not a noun.

Word	Noun	Adjective	Verb	Adverb
fictionalisation	Yes	No	No	No
fictionalise	No	No	Yes	No

fictionalisation (noun)	fictionalise (noun)
writing in a fictional form
a literary work based partly or wholly on fact but written as if it were fiction

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