specialization vs specialize

specialization is a noun but specialize is not a noun.

Word	Noun	Adjective	Verb	Adverb
specialization	Yes	No	No	No
specialize	No	No	Yes	No

specialization (noun)	specialize (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

specialization (verb)	specialize (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