naturalization

(noun) the quality of being brought into conformity with nature. Synonyms: naturalisation.

(noun) the proceeding whereby a foreigner is granted citizenship. Synonyms: naturalisation.

(noun) the introduction of animals or plants to places where they flourish but are not indigenous. Synonyms: naturalisation.

(noun) changing the pronunciation of a borrowed word to agree with the borrowers' phonology. Synonyms: naturalisation. Example: "The naturalization in english of many italian words."