Enter a clue or pattern or both:

The Clue

Postmaster's post: Abbr. (3 letter answer)

The Answer

GPO

Tags


Notes

The answer GPO is uncommon, appearing about once every 575 puzzles.

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Address abbr.
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Delivery notation: Abbr.
Mail place: Abbr.
Mail-sorting ctr.
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Where ltrs. come and go

Definition

GPO as a noun:

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