expanded-code

expanded code

noun
See under zip code.
Dictionary.com Unabridged

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
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
zip code
 
n
the US equivalent of postcode
 
[C20: from z(one) i(mprovement) p(lan)]

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