It stands for Confœderatio Helvetica, which means the confederation of Helvetians. To give a incredibly condensed history lesson Switzerland has multiple languages and ethnicities and chose Confœderatio Helvetica (Latin) as a neutral language name.
Switzerland
CH is the international badge for Switzerland, or Helvetia.
It is country domain, like "us" is for United States, "CH" is for Switzerland
Confoederatio Helvetica (Swiss Confederation)
Confoederatio Helvetica, "swiss" or "helvetic confederation"
If you mean the international car registration then it is Switzerland
CH is the abbreviation of Switzerland's official name Confederatio Helvetica.
Switzerland - official name: CH, confoederatio helvetica
Switzerland
Switzerland
Switzerland.
Switzerland