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Synonyms

customs union

American  

noun

  1. an association of independent nations or tariff areas created to remove customs barriers between them and to adopt a uniform tariff policy toward nonmember nations.


customs union British  

noun

  1. an association of nations which promotes free trade within the union and establishes common tariffs on trade with nonmember nations

"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

Example Sentences

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A trade deal with the four South American countries that founded the Mercosur customs union is expected to start taking effect in the EU this spring.

From The Wall Street Journal Mar. 24, 2026

A customs union would eliminate tariffs or taxes on some or all goods between the UK and the EU, reducing bureaucracy.

From BBC Feb. 2, 2026

The EU earlier this month signed a free-trade agreement with the four South American countries that founded the Mercosur customs union, and last year it announced a trade and investment deal with Indonesia.

From The Wall Street Journal Jan. 27, 2026

Speaking in Parliament, the Liberal Democrats' Europe spokesperson Al Pinkerton told MPs his customs union bill would "cut red tape, unlock investment and restore certainty to British business".

From BBC Dec. 9, 2025

The German principalities formed a customs union as early as 1818.

From The Belgian Curtain Europe after Communism by Samuel Vaknin

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