| Acronym | Meaning |
| HMM | Hidden Markov Model |
| RMP | Recognised [Operating/Operational] Maritime Picture |
| CID | Combat Identification -Criminal Investigation Division - Criminal Investigations Department |
| FLK | Falkland Islands (ISO 3166 Trigram) -Funny-Looking Kid (medical Diagnosis In-joke) |
| HTA | HyperText Application |
| FSO | Fire Support Officer - Flotilla Staff Officer - Foreign Service Officer |
| TSN | The Sporting News - The Sports Network |
| HORECA | Hotel |
| NEM DISS | Nemine Dissentiente (Latin |
| B2B | Business-to-business Electronic Commerce |