Thun, Lake

geographical name
\ ˈtün How to pronounce Thun, Lake (audio) \
variants: or Thunersee \ ˈtü-​nər-​ˌzā How to pronounce Thunersee (audio) \

Definition of Thun, Lake

lake (actually an expansion of the Aare River) 10 miles (16 kilometers) long in central Switzerland