| Acronym | Meaning |
 | OC | Observer/Controller |
| HVM | High Velocity Missile |
| FIN | Finland (ISO 3166 Trigram) |
| JTIDS | Joint Tactical Information Distribution System (djay-tidz) |
| TMTOWTDI | There's More Than One Way To Do It (from Perl) |
| PIG | Pipeline Inspection Gauge |
| USCINCSPACE | United States Commander In Chief |
| SNE | Synthetic Natural Environment |
| HL | Hectolitre |
| UCAV | Unmanned Combat Air Vehicle |
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