Dictionary.com
Thesaurus.com
Synonyms

postal code

American  

noun

  1. British. postcode.

  2. Canadian. a mailing code system similar to the zip code in the U.S. and the postcode in Britain.


postal code British  

noun

  1. US equivalent: zip code.  Also called (in Britain and certain other countries): postcode.  a code of letters and digits used as part of a postal address to aid the sorting of mail

"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

Etymology

Origin of postal code

First recorded in 1965–70