zip code

English Thesaurus

1. a code of letters and digits added to a postal address to aid in the sorting of mail (noun.communication)

hypernym	:	code,
definition	:	a coding system used for transmitting messages requiring brevity or secrecy (noun.communication)

part meronym	:	address, destination, name and address,
definition	:	written directions for finding some location; written on letters or packages that are to be delivered to that location (noun.communication)