zip-code

verb (used with object), zip-cod·ed, zip-cod·ing.

1. to provide or mark with a zip code: Zip-code all mail.

noun

1. 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.

noun

1. the US equivalent of postcode