Despite its outwardly static and traditional appearance, the Haredi (ultra-Orthodox) world is engaged in a constant cultural dialogue with modernity. This dialogue is exceptionally visible in the realm of language as shown in this study that examines the language and culture of four ultra-Orthodox groups found in Israel: the Ashkenazi (European) Mitnagdim-Lithuanians, and the Oriental Sefaradi Haredim. After the presentation of the historical background of the four sects, the author analyzes the public and private domains, focusing on language as used in many different forms and...