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noun British.
  1. an official code used by the post office, similar to the U.S. zip code, that adds numbers and letters to addresses to expedite mail delivery.
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Origin of postcode

First recorded in 1965–70; post3 + code
Also called postal code.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for postcode


  1. British and Australian a code of letters and digits used as part of a postal address to aid the sorting of mailAlso called: postal code US equivalent: zip code
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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