- German sociologist.
- a city in SW Germany at the confluence of the Rhine and Neckar rivers.
- a city in SW Germany, in Baden-Württemberg at the confluence of the Rhine and Neckar: one of Europe's largest inland harbours; a cultural and musical centre. Pop: 308 353 (2003 est)
- Karl (karl). 1893–1947, Hungarian sociologist, living in Britain from 1933: author of Ideology and Utopia (1929) and Man and Society in an Age of Reconstruction (1941)
