(also ZIP code)
A postal code consisting of five or nine digits.
- Just type in your zip code, personalize and customize the prewritten message, and email or print and mail it to legislators.
- And I kept telling people my ZIP code is Austin, Texas.
- The town is now so small that the U.S. Postal Service is taking away its zip code.
1960s: Zip, acronym from zone improvement plan.
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