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Terms containing Letters | all forms
| Subject | English | Thesaurus |
| abbr. | Air Dispatch Letter Service | A.D.L.S. (авиационно-почтовая служба Углов) |
| abbr., mil., BrE | Dispatch-Rider Letter-Service | DRLS |
| abbr., post | Letter Recognition Enhancement Program | LREP |
| USA | No Further Action Letter | NFAL |