| Acronym | Meaning |
| IMLAST | International Movement For Leisure Activities In Science And Technology - See MILSET |
| HRV | Croatian Language (ISO 639-2 Code) |
| YJ | Yoctojoule |
| GN | Giganewton - Guinea (ISO 3166 Digram) |
| Z | Zetta |
| LIGO | Laser Interferometer Gravitational Wave Observatory |
| HCCI | Homogeneous Charge Compression Ignition |
| MSG | MonoSodium Glutamate |
| GHC | Ghanan Cedi (ISO 4217 Currency Code) |
| CHT | Certified Hand Therapist |