- a lake in W Europe, bounded by Germany, Austria, and Switzerland. 46 miles (74 km) long; 207 sq. mi. (536 sq. km).
- a city in S Germany, on this lake: important church council 1414–18.
- a female given name.
- a city in S Germany, in Baden-Württemberg on Lake Constance: tourist centre. Pop: 80 716 (2003 est)
- a lake in W Europe, bounded by S Germany, W Austria, and N Switzerland, through which the Rhine flows. Area: 536 sq km. (207 sq miles)
