postal delivery zone

noun

variants or postal zone

: one of the numbered sections into which a large city or metropolitan area is divided in the U.S. postal system so that placing the appropriate number after the name of the post office in the address on postal matter facilitates sorting and delivery of the mail

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!