Entry 1 sense Webster, 1913 Decitizenize · De·cit·i·zen·ize · IPA /diːˈsɪtɪzənaɪz/ 01 v. t. To deprive of the rights of citizenship. 1. To deprive of the rights of citizenship.[R.] “We have no law -- as the French have -- to decitizenize a citizen.” — Edw. Bates.