| Acronym | Meaning |
| AYU | As Yet Unknown |
| UZB | Uzbek Language (ISO 639-2 Code) |
| POR | Portuguese Language (ISO 639-2 Code) |
| HUN | Hungary (ISO 3166 Trigram) |
| KK | Kilokelvin |
| NAVFE | U.S. Naval Forces |
| URI | Uniform Resource Identifier |
| TUN | Tunisia (ISO 3166 Trigram) |
| PUG | PET Users Group |
| KR | Kanuri Language (ISO 639-1 Code) |