zip code

noun
a system used in the U.S. to facilitate the delivery of mail, consisting of a five- or nine-digit code printed directly after the address, the first five digits (initial code) indicating the state and post office or postal zone, the last four (expanded code) the box section or number, portion of a rural route, building, or other specific delivery location.
Also, ZIP code, Zip code.


Origin:
1960–65, Americanism; Z(one) I(mprovement) P(rogram)

Dictionary.com Unabridged

zip-code

[zip-kohd]
verb (used with object), zip-coded, zip-coding.
to provide or mark with a zip code: Zip-code all mail.
Also, ZIP-code, Zip-code.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To zip code
Collins
World English Dictionary
zip code
 
n
the US equivalent of postcode
 
[C20: from z(one) i(mprovement) p(lan)]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
If you don't know the name of your library or library system, you can search by
  city or zip code.
Then it goes through by zip code and identifies which models work best in each
  neighborhood.
Enter your zip code to begin calculating your energy use.
Discuss with your friends all of the sounds that you think make your zip code
  unique.
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