GPO GPO /ˌdʒiːˌpiːˈoʊ/

abbreviation

1. [UK] General Post Office (historical) (GPO) - The main post office in a country or city.  ( GPO [UK] )
   General Post Office (historical) (GPO) - The main post office in a country or city.
   

noun

1. An agency of the legislative branch that provides printing and binding services for Congress and the departments and establishments of the federal government  ( Government Printing Office , GPO , United States Government Printing Office , US Government Printing Office )
   an agency of the legislative branch that provides printing and binding services for Congress and the departments and establishments of the federal government