What does "benelux" mean?

a customs union comprising Belgium and Netherlands and Luxembourg

Benelux

Common synonyms include: benelux area, benelux bloc, benelux geography, benelux region, benelux union, benelux-oriented.

/ˈbɛnəlʌks/ name

name ·Rare ·Advanced level

Noun

Proper Noun

1
An economic and customs union made up of Belgium, the Netherlands and Luxembourg.
2
A region of Europe, consisting of the countries which constitute this union.

Borrowed from Dutch Benelux, corresponding to a blend of Belgium + Netherlands + Luxembourg (1944).