| Buggfix | Reformation |
| bugning | bow |
| Bugsy | Bugsy |
| Bugsy Malone | Bugsy Malone |
| Bugsy Siegel | Bugsy Siegel |
| Bugulma | Bugulma |
| Building Information Model | Building Information Modeling |
| Built to Spill | Built to Spill |
| Bujanovac | Bujanovac |
| Buje | Buje |
| Bujinkan | Bujinkan |
| Bujumbura | Bujumbura |
| Bujumbura Mairie | Bujumbura Mairie Province |
| Bujumbura Rural | Bujumbura Rural Province |
| Bujumbura Rutal | Bujumbura Rural Province |
| buk | abdomen |
| Buka | Buka Island |
| Bukarest | Bucharest |
| Bukefalos | Bucephalus |
| Buken | Abdomen |
| bukett | nosegay |
| Bukettranunkel | Ranunculus asiaticus |
| bukhinna | peritoneum |
| bukhinneinflammation | peritonitis |
| Bukjeju | Bukjeju County |
| Bukka White | Bukka White |
| bukkake | bukkake |
| buklandning | belly landing |
| Bukovina | Bukovina |
| Bukranion | Bucranium |
| bukspottkörtel | pancreas |
| bukspotts- | pancreatic |
| bukt | creek |
| bukta sig | bend |
| buktalare | ventriloquist |
| buktaleri | ventriloquism |
| Bukthaj | Creek whaler |
| buktig | sinuous |
| buktighet | sinuosity |
| buktning | angledness |
| bula | bulge |
| Bulacan | Bulacan |
| Bulat Okudzjava | Bulat Okudzhava |
| Bulawayo | Bulawayo |
| Bulbasaur | Bulbasaur |
| Bulbköl | Bulbous bow |
| Buleuterion | Bouleuterion |
| bulevard | boulevard |
| Bulgan | Bulgan Province |
| bulgar | Bulgarian |
