| Acronym | Meaning |
| J5 | Joint Strategic Plans & Policy Directorate |
| NFER | National Foundation For Educational Research |
| JK | Jedi Knight - Just Kidding -Spanair (IATA Airline Designator) |
| TWIP | Take What Insurance Pays - When A Surgeon Agrees To Accept A Lower Payment Than He Ordinarily Would For A Procedure And Not Charge The Patient The Difference |
| VLF | Very Low Frequency |
| SQ | Sound Quality |
| AFM | Army Field Manual (UK; The U.S. More Frequently Uses Just FM) - Atomic Force Microscope - Aviation Fleet Maintenance |
| ESO | European Southern Observatory |
| IPB | Intelligence Preparation Of The Battlefield |
| POL | Polish Language (ISO 639-2 Code) |