/luk"seuhm berrg'/ ; Fr. /lyuuk sahonn boohrdd"/ , n.
1. a grand duchy surrounded by Germany, France, and Belgium. 422,474; 999 sq. mi. (2585 sq. km).
2. a city in and the capital of this grand duchy. 78,400.
3. a province in SE Belgium: formerly a part of the grand duchy of Luxembourg. 319,642; 1706 sq. mi. (4420 sq. km). Cap.: Arlon.
Also, Luxemburg (for defs. 1, 2).