Proper noun
Swiss Standard German
The form of the German language used for publishing, broadcasting and writing in Switzerland and Liechtenstein, as distinguished from the Swiss German language used in speech.
For example, Swiss Standard German always uses a double s (ss) instead of the eszett (ß). Source: Internet
However, Swiss Standard German is understood and spoken by most people within the country. Source: Internet
The earliest works were in Zurich German (Johann Martin Usteri, Jakob Stutz); the works of Jeremias Gotthelf which were published at the same time are in Swiss Standard German, but use many expressions of Bernese German. Source: Internet
Virtually any Swiss Standard German word can be borrowed into Swiss German, always adapted to Swiss German phonology. Source: Internet