| Acronym | Meaning |
 | ESA | Electro-Spark Alloying - Endangered Species Act - European Space Agency |
| KERMA | Kinetic Energy Released In MAterial / In MAtter / Per Unit MAss |
| GJ | Gigajoule - Grenada (FIPS 10-4 Country Code) |
| SIFF | Successor IFF |
| STM | Short Term Memory |
| PD | Per Diem (Latin: (calculated) By The Day) - Point Of Departure - Police Department - Postal District - Potential Difference - Principal Deputy - Public Domain |
| CHAOS | Cambridge Heart Anti-Oxydant Study |
| AFES | Automatic Fire Extinguishing System |
| UN | United Nations |
| Y | Yotta - Yttrium |
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