Benelux

[ ben-l-uhks ]
/ ˈbɛn lˌʌks /

noun

a customs union comprising Belgium, the Netherlands, and Luxembourg, begun January 1, 1948.
Belgium, the Netherlands, and Luxembourg considered together.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for benelux

Benelux
/ (ˈbɛnɪˌlʌks) /

noun

the customs union formed by Belgium, the Netherlands, and Luxembourg in 1948; became an economic union in 1960
these countries collectively
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012