| A | B |
| Attachment notation | Additional items attached to a letter (paper clipped, stapled, etc.) |
| Body | The message |
| Block style | No indentions |
| Business letter | Sent from a business to a person or another business |
| Complimentary close | Sincerely, Yours truly, etc. |
| Copy notation | The letter is also going to someone else |
| Date line | The date the letter was written |
| Double Space | Line space between paragraphs |
| Double Space | Line space between the Inside Address and the Salutation |
| Double Space | Line space between the Salutation and the Body of the letter |
| Double Space | Line space between the end of the Body and the Complimentary Close |
| Enclosure notation | Indicating that something else is included with the letter |
| Letter address/Mailing address | The person receiving the letter |
| Letterhead | The heading used by businesses |
| Mixed punctuation | Letter format where a colon or a comma is used after the salutation and a comma after the complimentary close |
| Open punctuation | A letter format where there is no punctuation |
| Personal Business Letter | Letter sent from a person to another person or a business |
| Quadruple Space | The line spacing between the Complimentary Close and the typed name |
| Quadruple Space | When you strike Enter 4 times, leaving 3 blank lines between lines of text |
| Double Space | When you strike Enter 2 times, leaving 1 blank line between lines of text |
| Quadruple Space | Line space between the Date line and the Inside Address |