| Acronym | Meaning |
| IHH | Idiopathic Hypogonadotropic Hypogonadism |
| USNA | United States National Arboretum - United States Naval Academy |
| GEEP | Geophysical Equipment Exploration Platform |
| MTR | Main And Tail Rotor (helicopter Type) - Military-Technological Revolution |
| STSM | Senior Technical Staff Member |
| EM | ElectroMagnetism/ElectroMagnetic |
| YN | Yoctonewton |
| PAHO | Pan American Health Organization |
| DG | Dei Gratia (Latin |
| BDI | Burundi (ISO 3166 Trigram) |