Skip to main content
ZIP code

ZIP code

35 1.6
A group of numbers used in a United States postal address to sort mail
  • noun
  • /zɪp koʊd/
  • US
translation icon : código postal
  • 41571 is the zip code for Varney, Kentucky.
  • ZIP code area
  • residential ZIP code
  • home ZIP code

He goes home and starts memorizing all the zip codes in America first.

Autoplay Next

Examples

Synonyms

ZIP
vsZIP code
  • US
65 1.8

A code of numbers and letters added to a United States address to help deliver mail

is the full official name rather than the shortened label
postal code
vsZIP code
  • South African
2 1.7

A short set of letters and numbers added to an address to help deliver mail

is specific to the United States rather than a general international code
postcode
vsZIP code
  • UK
2 1.4

A group of letters and numbers that is part of an address to help mail delivery

is U.S.-specific while this form is used in other countries

Surface Forms

ZIP code singular
ZIP codes plural

Morphology

ZIP + code

The meaning — a postal identifier used in the US — is directly derived from combining 'ZIP' (a mail-delivery code) with 'code' (an identifying label), so the overall sense is compositional. Cross-linguistic equivalents like 'postal code' or 'postcode' make this construction familiar, so a B1 learner who knows the constituent words will understand it.

Etymology

ZIP code comes from the US postal service in the 1960s. The part ZIP stands for the 'Zone Improvement Plan' and was chosen because it sounded like the short word 'zip', which means quick. So a ZIP code is the group of numbers in an address that helps sort mail and get it to people faster.