| Acronym | Meaning |
| MATS | U.S. Military Air Transport Service (1948-1966) |
| ESOL | English For Speakers Of Other Languages |
| BX | Base EXchange -Brunei (FIPS 10-4 Country Code) |
| XBA | European Composite Unit (EURCO; Bonds Market Unit) (ISO 4217 Currency Code) |
| RFEF | Real Federaci›n Espa?ola De Fœtbol (Spanish For Royal Spanish Football Federation) |
| WRS | Worldwide Reference System |
| WACC | Weighted Average Cost Of Capital (accounting) |
| COIN | Counter-Insurgency (military) |
| RAA | Rear Assembly Area |
| ALD | Accounting Line Designator (nuclear Weapon Targeting) |