| Acronym | Meaning |
| HHD | Humanitatum Doctor (Latin |
| FN | Femtonewton |
| ASMB | Adult Swim Message Board |
| PTAN | Precision Terrain Aided Navigation |
| VZW | Vereniging Zonder Winstoogmerk (Dutch Non-profit Organisation) |
| GCI | Ground-controlled Interception |
| XBB | European Monetary Unit (E.M.U.; Bonds Market Unit) (ISO 4217 Currency Code) |
| NNSA | U.S. National Nuclear Security Administration |
| EO | Esperanto Language (ISO 639-1 Code) |
| CRAM | Combined Radiometric Correction Model |