| Acronym | Meaning |
| ARDA | Advanced Research And Development Activity (became DTO 2006) |
| EMU | Electric Multiple Unit - A Method Of Connecting Self-propelled Railway Vehicles Together To Form A Train Under The Control Of One Driver. |
| INFORMS | (U.S.) Institute For Operations Research And The Management Sciences |
| THB | Thai Baht (ISO 4217 Currency Code) |
| SRD | Science Requirements Document -Surinam Dollar (ISO 4217 Currency Code) |
| TI | Tigrinya Language (ISO 639-1 Code) |
| ATM | Automated Teller Machine - Asynchronous Transfer Mode - At The Moment |
| COA | Concept Of Analysis - Course Of Action (military) |
| AAWC | Anti-Air Warfare Commander |
| ATG | Antigua And Barbuda (ISO 3166 Trigram) |