| bruxo | witch |
| Bruxos sangue-puro | Blood purity |
| bruxuleante | flickering |
| Bruzella | Bruzella |
| Bruzual | Bruzual |
| bruços | breaststroke |
| Bryan Adams | Bryan Adams |
| Bryan Singer | Bryan Singer |
| Bryansk | Bryansk |
| Bryce Dallas Howard | Bryce Dallas Howard |
| Bryidae | Bryidae |
| Bryndza | Bryndza |
| Bryophyta | Bryophite |
| Bryophyta sensu lato | Bryophite |
| Bryopsida | Bryopsida |
| Brytta | Brytta Léofa |
| Brzeszcze | Brzeszcze |
| Brześć Kujawski | Brześć Kujawski |
| bráctea | to cry |
| Brás | Blasius |
| Brás de Sebaste | Saint Blaise |
| Brâman | Brahman |
| brâmane | Brahman |
| brâmine | Brahman |
| brânquia | gill |
| Bräcke | Bräcke Municipality |
| Brändö | Brändö |
| Bräunlingen | Bräunlingen |
| Brædstrup | Brædstrup municipality |
| Bréal-sous-Vitré | Bréal-sous-Vitré |
| Bréscia | Brescia |
| Brévedent | Le Brévedent |
| Bréville | Bréville-les-Monts |
| Brévière | La Brévière |
| Brício | Bryce |
| Brígida | Bridget |
| Brígida da Suécia | Bridget of Sweden |
| brócolis | broccoli |
| brócolos | broccoli |
| bróculos | broccoli |
| brônquio | bronchus |
| brônquios | bronchial tubes |
| Brøndby | Brøndby |
| Brønderslev | Brønderslev municipality |
| Brønnøy | Brønnøy |
| Brørup | Brørup |
| Brütten | Brütten |
| Brăila | Brăila County |
| BS | BS |
| BS Zelda | BS Zelda no Densetsu |
| BSC Young Boys | BSC Young Boys |
| BT | BT |
| BTU | British thermal unit |
| Buada | Buada |
| Bubalis | Bubalus |
| Bubalornis niger | Red-billed Buffalo-weaver |
| Bubalus | Bubalus |
| Bubanza | Bubanza Province |
| Bubaste | Bubastis |
| Bubblegum | Bubblegum pop |
| Bubblegum Crisis | Bubblegum Crisis |
| Bubendorf | Bubendorf |
| Bubenreuth | Bubenreuth |
| Bubikon | Bubikon |
| Bubo ascalaphus | Pharaoh Eagle-owl |
| Bubo bengalensis | Rock Eagle-owl |
| Bubo coromandus | Dusky Eagle-owl |
| Bubo flavipes | Tawny Fish-owl |
| Bubo ketupu | Buffy Fish-owl |
| Bubo leucostictus | Akun Eagle-owl |
| Bubo magellanicus | Magellanic Horned Owl |
| Bubo nipalensis | Spot-bellied Eagle-owl |
| Bubo philippensis | Philippine Eagle-owl |
| Bubo sumatranus | Barred Eagle-owl |
| Bubo vosseleri | Usambara Eagle-owl |
| Bubo zeylonensis | Brown Fish-owl |
| Bubsheim | Bubsheim |
| Bubsy | Bubsy |
| bubão | boil |
| bubônico(a) | bubonic coffee-pot |
| bucaneiro | pirate |
| Bucara | Bukhara |
| Bucaramanga | Bucaramanga |
| Bucareste | Bucharest |
| Bucareste (capital da Romênia) | Bucharestoffee-pot |
| Bucculatricidae | Bucculatricidae |
| bucentauro | bucentaur |
