| Acronym | Meaning |
 | SETAC | Society For Environmental Toxicology And Chemistry |
| GU | Guam (postal Symbol; ISO 3166 Digram) |
| NOR | Norway (ISO 3166 Trigram) |
| FFR | Fédération Française De Rugby (French Rugby Federation) |
| LEMOSS | Long-Endurance MObile Submarine Simulator |
| RWA | Rwanda (ISO 3166 Trigram) |
| NITFS | National Imagery Transmission Format Standard |
| XE | Xenon |
| SWT | Sea Water Tank |
| LUG | Luganda Language (ISO 639-2 Code) |
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