| Acronym | Meaning |
| MCSF | Marine Corps Security Forces |
| LI | Lithium |
| LJJ | Lord Justices Of Appeal |
| FTP | File Transfer Protocol |
| PBT | PolyButylene Terephthalate |
| NAFO | Northwest Atlantic Fisheries Organization |
| C2C | Consumer-To-Consumer Electronic Commerce - Cam-To-Cam Internet Chat |
| GRP | Graphite Reinforced Plastic |
| RPD | Recognition-Primed Decision-making |
| USA | United States Of America (alsoISO 3166 Trigram) - United States Army |