visualisation vs visualise

visualisation is a noun but visualise is not a noun.

Word	Noun	Adjective	Verb	Adverb
visualisation	Yes	No	No	No
visualise	No	No	Yes	No

visualisation (noun)	visualise (noun)
a mental image that is similar to a visual perception

visualisation (verb)	visualise (verb)
	make visible
	imagine; conceive of; see in one's mind
	form a mental picture of something that is invisible or abstract
	view the outline of by means of an X-ray