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 habitually in 2000. Within the traditional Romansh-speaking areas, where 56.1% (33,991) of all speakers lived in 2000, it is the majority language in 66 municipalities. The status of Romansh differs widely within this traditional area however. Whereas in some areas Romansh is used by virtually the entire population, in others the only speakers are people who have moved there from elsewhere. Overall, Romansh dominates in most of the Surselva and the Lower Engadine as well as parts of the Surses, whereas German is the dominant daily language in most other areas, though Romansh is often still used and transmitted in