| warning letter | 9.87 | Two warning letters were issued. | ||
| anonymous letter | 8.95 | But in an anonymous letter, there is no limit. | ||
| threatening letter | 7.97 | Both players have received threatening letters. | ||
| similar letter | 6.91 | Perhaps they send you a similar letter. | ||
| angry letter | 6.58 | Lots of people write angry letters. | ||
| suspicious letter | 6.52 | Nor has a suspicious letter been found. | ||
| recent letter | 6.39 | Thank you for your recent letter. | ||
| first letter | 6.32 | Just the first letters. | ||
| personal letter | 6.32 | Some of them are personal letters. | ||
| fund-raising letter | 5.86 | So alumni get fund-raising letters. | ||
| second letter | 5.27 | The second letter was the same. | ||
| writing letter | 4.21 | McDuff passed the time writing letters . | ||
| such letter | 4.15 | Gaulieder denies writing such a letter. | ||
| handwritten letter | 4.08 | Arai left two handwritten letters. | ||
| formal letter | 3.75 | And a formal letter will follow. | ||
| official letter | 3.69 | In October, the official letters arrived. | ||
| separate letter | 3.62 | Others are sending separate letters to Valenti. | ||
| anthrax-laced letter | 3.49 | Trenton is where three anthrax-laced letters were mailed. | ||
| anthrax-tainted letter | 3.42 | Anthrax-tainted letters sent to Washington and New York originated there. | ||
| the letter | 3.36 | The first three letters are his initials. |