| Acronym | Definitions |
|---|---|
| UNIKOM | 2 |
| UNISA | 1 |
| UNISIST | 2 |
| UNITAR | 2 |
| UNITRAC | 2 |
| Univ. | 1 |
| UNIVAC | 1 |
| Unix | 2 |
| UNK | 1 |
| UNKN | 1 |
| UNL | 2 |
| UNM | 2 |
| UNMA | 1 |
| UNMOGIP | 1 |
| UNO | 6 |
| UNODIR | 1 |
| UNOG | 1 |
| UNOLS | 2 |
| UNOMIG | 1 |
| UNOS | 2 |
| unPC | 2 |
| UNPD | 2 |
| UNPF | 2 |
| UNPROFOR | 1 |
| UNR | 3 |
| UNREP | 1 |
| UNRISD | 1 |
| UNRWA | 3 |
| UNSC | 1 |
| UNSCEAR | 2 |
(301 — 330 of 610)