| Acronym | Meaning |
 | FLTSAT | Fleet Satellite |
| CUCV | Commercial Utility Cargo Vehicle |
| CP | Canadian Pacific - Check Point - Command Post |
| LLTR | Low-Level Transit Route |
| USFWS | United States Fish And Wildlife Service |
| ARC | Arc-second Raster Chart - Association For Retarded Citizens - Appalachian Regional Commission |
| MEC | Maine Central Railroad (AAR Reporting Mark) - Manta |
| ISMB | International Society Of Matrix Biologists |
| RB | Rubidium |
| ICRAF | International Centre For Research In Agroforestry (a.k.a. World Agroforestry Centre Since 2002) |
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