Solothurn

geographical name

So·​lo·​thurn ˈzō-lə-ˌtu̇rn 

ˈsō-

1

canton of northwestern Switzerland area 305 square miles (790 square kilometers), population 255,000

2

commune on the Aare River in northwestern Switzerland population 12,500

Note: The commune of Solothurn serves as capital of the canton of Solothurn.