specialisation vs specialise

specialisation is a noun but specialise is not a noun.

Word	Noun	Adjective	Verb	Adverb
specialisation	Yes	No	No	No
specialise	No	No	Yes	No

specialisation (noun)	specialise (noun)
the special line of work you have adopted as your career
the act of specializing; making something suitable for a special purpose
(biology) the structural adaptation of some body part for a particular function

specialisation (verb)	specialise (verb)
	become more focused on an area of activity or field of study
	suit to a special purpose
	evolve so as to lead to a new species or develop in a way most suited to the environment
	be specific about
	devote oneself to a special area of work