| Acronym | Meaning |
| AOA | Argonne National Laboratory -Angolan Kwanza (ISO 4217 Currency Code) -Award Of Arms (heraldry) |
| DBCS | Double-Byte Character Set |
| DES | Deep Ecliptic Survey |
| TOMS | Total Ozone Mapping Spectrometer (satellite Instrument) |
| ULEB | Union Des Ligues Europ?ens De Basket-ball |
| NBC | National Broadcasting Corporation - Nuclear |
| JI | Joint Implementation |
| RDD | Radiological Dispersion Device |
| AFRRI | (U.S.) Armed Forces Radiobiology Research Institute |
| HMCS | Her Majesty's Canadian Ship Or Her Majesty's Courts Service |