| Acronym | Meaning |
| YUG | Former Yugoslavia (ISO 3166 Trigram |
| DIAC | Department Of Immigration And Citizenship (Australia) [1] |
| YMD | People's Democratic Republic Of Yemen (ISO 3166 Trigram |
| SEN | Senegal (ISO 3166 Trigram) -Small Extension Node |
| FA | Femtoampere |
| HI | Hindi Language (ISO 639-1 Code) |
| MHW | Mean High Water (nautical Charts) |
| FO | Faroese Language (ISO 639-1 Code) |
| WDC | Western Design Center - World Data Center |
| YAC | Youth-Adult Committee |