| Acronym | Meaning |
| RTI | Run-Time Infrastructure (Simulation) |
| FA | Femtoampere |
| MES | Marconi Electronic Systems - Medium Edison Screw |
| NDS | Nintendo DS |
| ZAF | South Africa (ISO 3166 Trigram) |
| GNU | GNU's Not Unix |
| MSDB | Multi Source Data Base |
| ZR | Zaire (ISO 3166 Digram; Obsolete 1997) |
| ISU | Integrated Sight Unit - International Skating Union |
| LBH | Light Battlefield Helicopter - Lyman-Birge-Hopfield Bands |