| A | B |
| Attachment notation | Notation that indicates that additional items are attached (clipped |
| Body | The message of a letter |
| Block style | Formatting style for a letter in which all parts are aligned with the left margin |
| Business letter | Letter sent from a business to a person or to another business/organization |
| Complimentary close | The closing of the letter; Example: Sincerely |
| Copy notation | Notation indicating that a copy of the letter is being sent to someone in addition to the addressee/letter address |
| Date line | Date that the letter was written |
| Double space | When you strike Enter 2 times |
| Enclosure notation | Notation indicating that additional items are included in the envelope with the letter |
| Letter address/Mailing address | The address of the person receiving the letter |
| Letterhead | Heading of a business letter that includes the business name |
| Mixed punctuation | Letter format in which a colon or a comma is added after the salutation and a comma is added after the complimentary close |
| Open punctuation | Letter format in which no punctuation is included after the salutation or complimentary close |
| Personal-business letter | Letter sent from an individual to another person or to a business/organization |
| Quadruple space | When you strike Enter 4 times |
| Return address | Address of the person that wrote the letter |
| Salutation | Greeting of the letter; Example: Dear Sir or Madam: |
| Signature line | The handwritten signature of the person that wrote the letter |
| Single space | When you strike Enter 1 time |
| Typist initials | The initials of the person that typed the letter if they were not the author of the letter |
| Writer’s name | The keyed name of the author of the letter |