From Longman Dictionary of Contemporary EnglishLuxembourgLux‧em‧bourg, Luxemburg /ˈlʌksəmbɜːɡ $ -bɜːrɡ/ a small country in western Europe, surrounded by Belgium, Germany, and France. Capital: Luxembourg-Ville. Population: 514,862 (2014). Luxembourg is a member of the EU, and its official name is the Grand Duchy of Luxembourg. The EU's main law court, the European Court of Justice, is in Luxembourg. —Luxembourger noun