specialization vs specialism

specialization and specialism both are nouns.

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

As nouns, specialization and specialism are synonyms defined as:

specialization and specialism: the special line of work you have adopted as your career

Other synonyms of specialization include specialisation, speciality, specialty.

specialization (noun)	specialism (noun)
the special line of work you have adopted as your career	the special line of work you have adopted as your career
the act of specializing; making something suitable for a special purpose	the concentration of your efforts on a particular field of study or occupation
(biology) the structural adaptation of some body part for a particular function