| Acronym | Meaning |
| EWSD | Elektronisches W?hlsystem Digital (German |
| IO | British Indian Ocean Territory (ISO 3166 Digram; FIPS 10-4 Territory Code) |
| BAO | Battlefield Air Operations |
| LBW | Leg Before Wicket |
| HCCI | Homogeneous Charge Compression Ignition |
| CHL | Chile (ISO 3166 Trigram) |
| DPMO | (U.S.) Defense Prisoner Of War/Missing Personnel Office |
| MJ | Megajoule |
| BIST | Built-In Self-Test |
| LAB | Logistics Assault Base |