| Acronym | Meaning |
 | MG | Malagasy Language (ISO 639-1 Code) - Milligram |
| NET | National Educational Television |
| ANC | African National Congress |
| SG | Senegal (FIPS 10-4 Country Code) - Singapore (ISO 3166 Digram) - Snow Grains (METAR Code) -Study Group |
| ASWORG | (U.S.) AntiSubmarine Warfare Operations Research Group |
| KBO | Kuiper Belt Object |
| AFWA | Air Force Weather Agency - Association Of Fish And Wildlife Agencies |
| COS | Cooper Ornithological Society |
| JTN | Johnston Atoll (ISO 3166 Trigram; Obsolete 1986) |
| UPDM | Uganda People?s Democratic Movement - Unified Modeling Language Profile For DoDAF And MoDAF - Unit? De Psychiatrie Du D?veloppement Mental - Universal Pattern Decomposition Method - Unix Power Device Management - Unpressurized Docking Mast - Urban Planni |
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