- UBD
- Understanding By Design (Academic & Science » Universities)* User Brain Damage (Computing » General)* User Brain Damage (Computing » Security)* User Brain Damage (Governmental » Military)* User Brain Damage (Governmental » Transportation)* UnderBalanced Drilling (Business » Products)* U Be Dead (Governmental » Military)* Ultimate Board Of Directors (Business » General)* Union Belt of Detroit (Regional » Railroads)* U. S. Bingo Daubers (Community » Sports)
Abbreviations dictionary. 2012.