Serbia and Montenegro (a former country in Southeastern Europe on the Balkan Peninsula, existing from 1992 to 2006, previously part of Yugoslavia; composed of modern Serbia and Montenegro and known until 2003 as the Federal Republic of Yugoslavia); Used other than figuratively or idiomatically: see Serbia, y, Montenegro.
Sicily (the largest island in the Mediterranean Sea, an autonomous region of Italy, close to Africa and separated from Tunisia and Libya by the Strait of Sicily)
Silesia (a cultural region of Central Europe, now chiefly in Poland, with small portions in the Czech Republic and Germany, from early modernity until 1945 predominantly German-speaking with Slavic-speaking minorities (and local majorities))