Definition of Zollverein:

part of speech: noun

An agreement or union among the German states for commercial purposes.

Usage examples:

• In his letters urging the imperial government to find an immediate remedy for this unfortunate condition of things, he acknowledged that there was " something captivating in the project of forming this vast British Empire into one huge Zollverein with free interchange of commodities, and uniform duties against the world without; though perhaps without some federal legislation it might have been impossible to carry it out." John George Bourinot in "Lord Elgin".

• The Zollverein was established, the Teutonic Federation became closer, and the lead of Prussia more decided. Edward Carpenter in "The Healing of Nations and the Hidden Sources of Their Strife".