| Acronym | Meaning |
 | IUSS | Integrated Undersea Surveillance System - Integrated Unit Simulation System - International Union Of Soil Science |
| FSS | Fire Support Station |
| FAS | Federation Of American Scientists - Fetal Alcohol Syndrome |
| CC | Many |
| NSA | U.S. National Security Agency - Naval Support Activity - No Strings Attached |
| SWORD | Subjective WORkload Dominance |
| PER | Peru (ISO 3166 Trigram) |
| TWI | Twi Language (ISO 639-2 Code) |
| KM | Khmer Language (ISO 639-1 Code) - Kilometre |
| DSS | Digitized Sky Survey - Discarding-Sabot Shell (ammunition) |
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