postal union

  1. an international agreement on postal rates and services.

Origin of postal union

First recorded in 1870–75

Words Nearby postal union Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use postal union in a sentence

  • There is no greater enterprise than the postal system in this land and extending to all the nations in the postal union.

    Usury | Calvin Elliott