specialization vs specialisation

specialization and specialisation both are nouns.

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

As nouns, specialization and specialisation are synonyms defined as:

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

Other synonyms of specialization include specialism, speciality, specialty.

As nouns, specialization and specialisation are synonyms defined as:

specialization and specialisation: the act of specializing; making something suitable for a special purpose

As nouns, specialization and specialisation are synonyms defined as:

specialization and specialisation: (biology) the structural adaptation of some body part for a particular function

Other synonyms of specialization include differentiation.

specialization (noun)	specialisation (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 act of specializing; making something suitable for a special purpose
(biology) the structural adaptation of some body part for a particular function	(biology) the structural adaptation of some body part for a particular function