Romansh language the most comprehensive collection of Romansh words, which can also be used in the idioms with the necessary phonetic shifts. The signatories of "Pro Rumantsch" stress that Romansh needs both the idioms and Rumantsch Grischun if it is to improve its chances in today's communication society. In Switzerland, official language use is governed by the "territorial principle": Cantonal law determines which of the four national languages enjoys official status in which part of the territory. Only the federal administration is officially quadrilingual. Romansh is an official language at the federal level, one of the three official languages of the Canton
Romansh language language in the Surses, but has mostly disappeared from the Albula Valley. The highest proportion of habitual speakers is found in Salouf with 86.3%, the lowest in Obervaz with 18.9%. In these areas, many Romansh speakers only speak German with their spouses as an accommodation or because of a habit, though they sometimes speak Romansh to their children. In most cases, this is not because of a will to preserve the language, but because of other reasons such as Romansh having been their own childhood language or a belief that their children will later find it easier to learn additional