| Letters of relief | 17 |
| Letters of rejoicing | 20 |
| Letters of recommendation | 25 |
| Letters of proof | 16 |
| Letters of payback | 18 |
| Letters of patent? | 18 |
| Letters of obligation | 21 |
| Letters of note? | 16 |
| Letters of logic | 16 |
| Letters of invitation? | 22 |
| Letters of invitation | 21 |
| Letters of introduction | 23 |
| Letters of indecision, on a schedule | 36 |
| Letters of indebtedness | 23 |
| Letters of haste | 16 |
| Letters of gratitude, in a text | 31 |
| Letters of faux modesty | 23 |
| Letters of evidence | 19 |
| Letters of electrical flexibility | 33 |
| Letters of distress | 19 |
| Letters of discharge? | 21 |
| Letters of discharge | 20 |
| Letters of devotion | 19 |
| Letters of debt | 15 |
| Letters of credit? | 18 |
| Letters of credit | 17 |
| Letters of concern to the pale | 30 |
| Letters of concern to the fair-skinned | 38 |
| Letters of concern to a transfusionist | 38 |
| Letters of concern | 18 |
| Letters of compassion | 21 |
| Letters of commerce | 19 |
| Letters of certification? | 25 |
| Letters of Calvary | 18 |
| Letters of attorney? | 20 |
| Letters of assent | 17 |
| Letters of approval | 19 |
| Letters of appreciation, in a text | 34 |
| Letters of affection? | 21 |
| Letters of affection | 20 |
| Letters of a noted cartel | 25 |
| Letters of a money dispenser | 28 |
| Letters of a certain class | 26 |
| Letters next to Katarina Witt's name at the 1984 and 1988 Olympics | 70 |
| Letters next to Clinton's name, until 2008 | 46 |
| Letters next to an eye | 22 |
| Letters next to a 6 | 19 |
| Letters next to a 3 | 19 |
| Letters next to 0 | 17 |
| Letters near zero? | 18 |
| Letters near zero, at times | 27 |
| Letters near the 7, on some phones | 34 |
| Letters near a hammer and sickle | 32 |
| Letters near 7, on some phones | 30 |
| Letters near 7, on some old phones | 34 |
| Letters near 7 | 14 |
| Letters near 6 | 14 |
| Letters near 4, on a touchtone keypad | 37 |
| Letters near 4 on a keypad | 26 |
| Letters near 2 | 14 |
| Letters near 0 on a phone | 25 |
| Letters near ''0'' | 34 |
| Letters meaning fingers | 23 |
| Letters meaning "right away" | 38 |
| Letters meaning "King of the Jews" | 44 |
| Letters meaning "Jesus of Nazareth, King of the Jews" | 63 |
| Letters loved by angels | 23 |
| Letters linking real and assumed names | 38 |
| Letters like this: Abbr. | 24 |
| LETTERS LIKE THESE | 18 |
| Letters like PDQ | 16 |
| Letters like "this": Abbr. | 36 |
| Letters left of F1 | 18 |
| Letters just before omega | 25 |
| Letters introducing some names | 30 |
| Letters in TV Guide | 19 |
| Letters in transit? | 19 |
| Letters in the song "Respect" | 39 |
| Letters in the sand? | 20 |
| Letters in the sand, perhaps | 28 |
| Letters in the sand | 19 |
| Letters in the New Testament | 28 |
| Letters in the Loop | 19 |
| Letters in the camera biz | 25 |
| Letters in some ratings | 23 |
| Letters in some church names | 28 |
| Letters in security | 19 |
| Letters in old atlases | 22 |
| Letters in much e-mail | 22 |
| Letters in math proofs | 22 |
| Letters in many e-mail addresses | 32 |
| Letters in many black church names | 34 |
| Letters in many addresses | 25 |
| Letters in love letters | 23 |
| Letters in lieu of a lipstick mark | 34 |
| Letters in letter | 17 |
| Letters in Icelandic | 20 |
| Letters in genetics | 19 |
| Letters in front of an e-mail address | 37 |
| Letters in Einstein's famous quotation | 42 |