| Acronym | Meaning |
| FRA | French Language (ISO 639-2 Code) |
| NN | Norwegian Nynorsk Language (ISO 639-1 Code) |
| NETL | (US) National Energy Technology Laboratory |
| IAU | International Association Of Universities - International Astronomical Union |
| CBASSE | Commission On Behavioral And Social Sciences And Education (sea Bass) |
| HO | Holmium |
| DVD | Digital Versatile Disk (was Digital Video Disk) |
| EP | Electronic Protection |
| PPO | PolyPhenylene Oxide |
| THA | Thailand (ISO 3166 Trigram) |