naturalization vs naturalisation

naturalization and naturalisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
naturalization	Yes	No	No	No
naturalisation	Yes	No	No	No

As nouns, naturalization and naturalisation are synonyms defined as:

naturalization and naturalisation: the proceeding whereby a foreigner is granted citizenship

As nouns, naturalization and naturalisation are synonyms defined as:

naturalization and naturalisation: changing the pronunciation of a borrowed word to agree with the borrowers' phonology

As nouns, naturalization and naturalisation are synonyms defined as:

naturalization and naturalisation: the introduction of animals or plants to places where they flourish but are not indigenous

As nouns, naturalization and naturalisation are synonyms defined as:

naturalization and naturalisation: the quality of being brought into conformity with nature

naturalization (noun)	naturalisation (noun)
the proceeding whereby a foreigner is granted citizenship	the proceeding whereby a foreigner is granted citizenship
changing the pronunciation of a borrowed word to agree with the borrowers' phonology	changing the pronunciation of a borrowed word to agree with the borrowers' phonology
the introduction of animals or plants to places where they flourish but are not indigenous	the introduction of animals or plants to places where they flourish but are not indigenous
the quality of being brought into conformity with nature	the quality of being brought into conformity with nature