| UNIT | |
| abbr. | Unit |
| abbr. avia. | unsteady natural flow type |
| abbr. chem. scient. | Unifying Nitrogen Ion Transmitter |
| abbr. comp., net. IT | Unattended Network Installation Toolkit |
| abbr. ed. scient. | University Of Natal Intensive Tuition |
| abbr. el. | universal numerical interchange terminal |
| abbr. sport. | United Notorious Intoxication Team |
| abbr. UN | United Nations Intelligence Taskforce |
| Unit | |
| abbr. | unitarian |