| A | B |
| mailroom | a specially designated area with special equipment needed to aid workers who process the mail |
| personal; confidential | You may open all letters for your supervisor except those marked with either of these words |
| annotating | writing helpful comments on correspondence before your supervisor receives it |
| routing slip | if an item is to be read by more than one person in the company, you should attach this to the item |
| interoffice mail | mail sent and received within the company |
| postage meter | prints postage in the exact amount needed |
| optical character reader | automated equipment that reads the address on an envelope and prints a bar code |
| ZIP + 4 | voluntary nine-digit ZIP Code program now being used by many businesses |
| Express Mail | fastes delivery service provided by USPS |
| COD Mail | a purchaser of goods pays for the goods and the postage when the goods are delivered |