| Acronym | Meaning |
| AJD | Astronomical Julian Day |
| SADD | Students Against Drunk Driving (national School Related Group) |
| PL | Ice Pellets (new Style METAR Code) -petalitre -Phase Line (Co-ordination Line) -Poland (ISO 3166 And FIPS 10-4 Country Code Digram) |
| DGZ | Desired Ground Zero |
| ULEB | Union Des Ligues Europ?ens De Basket-ball |
| ORAU | Oak Ridge Associated Universities |
| HLA | High Level Architecture - Human Leukocyte Antigen |
| CAMRA | CAMpaign For Real Ale |
| DFCB | Data Format Control Book |
| CJO | Chief Of Joint Operations |