The "Pledari Grond" German–Rumantsch Grischun dictionary, with more than 215 000 entries, is 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. There also exist individual dictionaries for each of the different idioms: Sursilvan, Vallader, Puter, Surmiran, and Sutsilvan. As well, the "Pledari Grond" dictionary links to several texts on the grammar of Vallader, Puter, and Rumantsch Grischun.