| Acronym | Meaning |
| 2G | Second |
| B10 | Ben 10 |
| CSK | Czechoslovakia (ISO 3166 Trigram; Obsolete Since 1993) |
| NAV | Navigation[al] |
| PPS | Post Postscriptum - Precise/Precision Positioning Service (GPS) - PolyPhenylene Sulfide |
| DXM | DeXtroMethorphan |
| TWS | Thermal Weapon Sight - Track While Scan |
| LWS | Land Warrior System |
| MIL | AASPEM -Man-In-the-Loop AASPEM |
| NYRA | National Youth Rights Association -New York Racing Association (horse Racing) |