| Acronym | Meaning |
| MCI | Microwave Communications |
| AR | Argentina (FIPS 10-4 Country Code; ISO 3166 Digram) - Arkansas (postal Symbol) - Armour |
| FRA | Federal Railroad Administration -France (ISO 3166 Trigram) |
| KL | Kilolitre |
| VCJCS | Vice Chairman |
| TDP | Technology Demonstration Programme |
| F.K.A. OR F/K/A | Formerly Known As |
| LNB | Low-Noise Block (Satellite Dish) |
| IDC | International Data Corporation |
| GLAST | Gamma-ray Large Area Space Telescope |