| Acronym | Meaning |
| FAA | U.S. Federal Aviation Administration - Financial Aid Administrator - Fleet Air Arm - Functional Area Analysis |
| FI | Finnish Language (ISO 639-1 Code) |
| GC | East Germany (NATO Country Code; Obsolete 1990) -General Counsel -Gigacoulomb |
| LSD | Landing Ship |
| ADF | Australian Defence Force - African Development Foundation |
| TES | Tactical Event System |
| POD | Port Of Debarkation |
| YN | Yottanewton |
| FX | Firefox -Metropolitan France (ISO 3166 Digram; Obsolete 1997) |
| AC | Attocoulomb |