zip code zip by • zip fastener · · · Info · Definitions · Characters · · zip code · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) a code of letters and digits added to a postal address to aid in the sorting of mail. Synonyms: ZIP code, ZIP, postcode, postal code. · · Noun Definition 1 Characters · · space U+0020 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 o latin small letter o U+006F p latin small letter p U+0070 z latin small letter z U+007A