1. Address: the particulars of the place where someone lives or an organization is situated.
"They exchanged addresses and agreed to keep in touch"
2. Addressee: the person to whom something is addressed.
"The contents of the letters were calculated to cause distress to the individual addressee"
3. Dispatch: to send off or away with promptness or speed
"Dispatch a letter"
4. Correspondence: communication by exchanging letters.
"The organization engaged in detailed correspondence with management"
5. Postal code: a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.
"Don't forget to mention your postal code. "
6. Freight: goods transported in bulk by truck, train, ship, or aircraft.
"A decline in the amount of freight carried by rail"
7. Letterhead: a printed heading on stationery, stating a person or organization's name and address.
"Write to the company's registered office, which you can normally get from their letterhead"
8. Mailman: a postman.
"The mailman would be here soon. "
9. Postage: the sending of letters and parcels by post.
"Proof of postage is required"
10. Stamp: fix a postage stamp or stamps on to (a letter).
"Annie stamped the envelope for her"
11. Express delivery: Express mail is an accelerated mail delivery service for which the customer pays a surcharge and receives faster delivery.
"If you are in a hurry, choose the option of express delivery. "
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