| Acronym | Meaning |
| FO | Faroese Language (ISO 639-1 Code) |
| NIEHS | National Institute Of Environmental Health Sciences |
| PRN | Pro Re Nata (Latin |
| AC | Attocoulomb |
| TN | Tennessee (postal Symbol) - Teranewton - Tonga (FIPS 10-4 Country Code) - Tunisia (ISO 3166 Digram) |
| CBML | Coalition Battle Management Language |
| AS | Arsenic |
| BMA | British Medical Association |
| NAN | Not A Number (computing) |
| USB | Universal Serial Bus |