| Letter four before omicron | 26 |
| Letter from a teacher | 21 |
| Letter from a teacher? | 22 |
| Letter from abroad | 18 |
| Letter from an Adonis? | 22 |
| Letter from an unmarried female? | 32 |
| Letter from Aristotle | 21 |
| Letter from Athens | 18 |
| Letter from college? | 20 |
| Letter from Corinth | 19 |
| Letter from Corinthians | 23 |
| Letter from Crete | 17 |
| Letter from Delphi | 18 |
| Letter from Greece | 18 |
| Letter from Greece? | 19 |
| Letter from Hera | 16 |
| Letter from Homer? | 18 |
| Letter from Iceland? | 20 |
| Letter from Jude | 16 |
| Letter from Lesbos | 18 |
| Letter from Levkás | 21 |
| Letter from London | 18 |
| Letter from millennia ago | 25 |
| Letter from overseas | 20 |
| Letter from Paul | 16 |
| Letter from Paul (abbr.) | 24 |
| Letter from Pericles | 20 |
| Letter from Pharos | 18 |
| Letter from Piraeus | 19 |
| Letter from Plato | 17 |
| Letter from St. Paul | 20 |
| Letter from St. Paul: Abbr. | 27 |
| Letter from Tel Aviv | 20 |
| Letter from the Corinthians | 27 |
| Letter from the editor (Part 1) | 31 |
| Letter from the editor (Part 2) | 31 |
| Letter from the editor (Part 3) | 31 |
| Letter from the Guardian? | 25 |
| Letter from the teacher | 23 |
| Letter from the Vatican | 23 |
| Letter from Thessaly | 20 |
| Letter getter | 13 |
| Letter getter, maybe | 20 |
| Letter getter, often | 20 |
| Letter getter: Abbr. | 20 |
| Letter getters | 14 |
| Letter getters: Abbr. | 21 |
| Letter greeting never read by its intended recipient | 52 |
| Letter halfway between alpha and nu | 35 |
| Letter head | 11 |
| Letter header abbr. | 19 |
| Letter heads? | 13 |
| Letter hidden where you might forget to wash? | 45 |
| Letter holder | 13 |
| Letter holder (abbr.) | 21 |
| Letter holder: Abbr. | 20 |
| Letter holders | 14 |
| Letter in "walk" and "talk" | 47 |
| Letter in a fraternity name | 27 |
| Letter in a mysterious inscription | 34 |
| Letter in advance? | 18 |
| Letter in El Al's logo | 26 |
| Letter in frat names | 20 |
| Letter in Hebrew writing | 24 |
| Letter in Larisa | 16 |
| Letter in radio communications | 30 |
| Letter in red and violet | 24 |
| Letter in runes | 15 |
| Letter in Socrates' name | 28 |
| Letter in some fraternity names | 31 |
| Letter in the Daily Mirror | 26 |
| Letter in the Globe and Mail | 28 |
| Letter in the London Times | 26 |
| Letter in the middle: abbr. | 27 |
| Letter in the phonetic alphabet | 31 |
| Letter insert, briefly | 22 |
| Letter inserts: Abbr. | 21 |
| Letter jacket wearer | 20 |
| Letter jumble (Abbr.) | 21 |
| Letter letters | 14 |
| Letter line | 11 |
| Letter lines | 12 |
| Letter lineup | 13 |
| Letter linkage | 14 |
| Letter made with two fingers | 28 |
| Letter man | 10 |
| Letter man of TV | 16 |
| Letter man Sajak and Letterman | 30 |
| Letter man's house | 22 |
| Letter man? | 11 |
| Letter marking | 14 |
| Letter medium | 13 |
| Letter number | 13 |
| Letter O? | 9 |
| Letter of a chapter? | 20 |
| Letter of a sort | 16 |
| Letter of approval?: Abbr. | 26 |
| Letter of indictment? | 21 |
| Letter of regret to a G.I. | 26 |
| Letter of the law? | 18 |