| Acronym | Meaning |
| FNA | Functional Needs Analysis |
| RTLS | Return To Launch Site - Period In NASA Space Shuttle Assent Profile Where |
| IPN | Instytut Pamieci Narodowej (Polish |
| SBB | German For The Swiss Federal Railways |
| CVLL | Crypto Variable Logic Label |
| COIN | Counter-Insurgency (military) |
| TCP | Traffic Control Point - Transmission Control Protocol - Trichlorophenol |
| DIFAR | DIrectional Frequency Analysis And Recording |
| TF | French Southern Territories (ISO 3166 Digram) -Task Force -Terafarad |
| YO | Former Yugoslavia (NATO Country Code |