a grand duchy in W Europe: it formed the Benelux customs union with Belgium and the Netherlands in 1948 and was a founder member of the Common Market, now the European Union. Official languages: French, German, and Luxemburgish. Religion: Roman Catholic majority. Currency: euro. Capital: Luxembourg. Pop: 583 455 (2017 est). Area: 2586 sq km (999 sq miles)
2.
the capital of Luxembourg, on the Alzette River: an industrial centre. Pop: 76 000 (2005 est)
3.
a province in SE Belgium, in the Ardennes. Capital: Arlon. Pop: 254 120 (2004 est). Area: 4416 sq km (1705 sq miles)
Luxembourg in American English
(ˈlʌksəmˌbɜrg; French lyksɑ̃ˈbuʀ)
1.
grand duchy in W Europe, bounded by Belgium, Germany, & France: 999 sq mi (2,587 sq km); pop. 401,000
2.
its capital, in the S part: pop. 76,000
3.
province of S Belgium: 1,715 sq mi (4,442 sq km); pop. 240,000