| Acronym | Meaning |
| MLSR | Missing |
| HMM | Hidden Markov Model |
| TLS | Timor-Leste (ISO 3166 Trigram) -Times Literary Supplement |
| USN | United States Navy |
| ILRI | International Livestock Research Institute |
| TMA | Terminal Manoeuvring Area (restricted Flying Zone) |
| PARWIG | Power Augmented Ram Wing In Ground (aeroplane Wing Shape) |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| BI | Bislami Language (ISO 639-1 Code) |
| FAH | Federation Of American Hospitals - Fine Arts And Humanities - Foreign Affairs Handbook |