| Acronym | Meaning |
| IMBD | International Migratory Bird Day |
| EAC | Echelons Above Corps |
| ISO | In Search Of -International Organization For Standardization (from The Greek ?†?? |
| STDM | Statistical Time Division Multiplexing |
| MHRA | (UK) Medicines And Healthcare Products Regulatory Agency |
| AMOS | Advanced MOrtar System - Air Force Maui Optical And Supercomputing Observatory |
| ACT | R -ACT-Rational (cognitive Model) |
| ASICS | Anima Sana In Corpore Sano (Latin |
| RFEF | Real Federaci›n Espa?ola De Fœtbol (Spanish For Royal Spanish Football Federation) |
| AJD | Astronomical Julian Day |