| bivalent | bivalente |
| bivalve | bivalve |
| bivalved | bivalve |
| Bivalves | Bivalvia |
| Bivalvia | Bivalvia |
| bivalvular | bivalve |
| Bivels | Bivels |
| bivouac | campeggiare |
| biweekly | quindicinale |
| Bix Beiderbecke | Bix Beiderbecke |
| Bixbyite | Bixbyite |
| Bixente Lizarazu | Bixente Lizarazu |
| Biya River | Bija |
| Biysk | Bijsk |
| Biysk Airport | Aeroporto di Bijsk |
| Biysk Pedagogical State University | Università Pedagogica Statale di Bijsk |
| bizarre | singolare |
| Bizau | Bizau |
| Bizen Province | Bizen |
| Bizerta | Biserta |
| Bizerte | Biserta |
| Bizerte Governorate | Biserta |
| Bière | Bière |
| Bié | Bié |
| Biłgoraj | Biłgoraj |
| Biševo | Busi |
| BJ | BJ |
| Bjarkøy | Bjarkøy |
| Bjarne Stroustrup | Bjarne Stroustrup |
| Bjarni Herjólfsson | Bjarni Herjólfsson |
| Bjarni Viðarsson | Bjarni Viðarsson |
| Bjelovar | Bjelovar |
| Bjelovar-Bilogora County | Regione di Bjelovar e della Bilogora |
| Bjelovar-Križevci | Belovár-Kőrös |
| Bjergsted | Bjergsted |
| Bjerkreim | Bjerkreim |
| Bjerringbro municipality | Bjerringbro |
| Bjorn | Orso |
| Bjorn Borg | Björn Borg |
| Bjugn | Bjugn |
| Bjuv Municipality | Bjuv |
| Björk | Björk |
| Björn | Orso |
| Björn Borg | Björn Borg |
| Bjørn Andresen | Björn Andrésen |
| Bjørnstjerne Bjørnson | Bjørnstjerne Bjørnson |
| BK | BK |
| BKV | Budapesti Közlekedési Vállalat |
| bl | biasimo |
| BL Lac object | oggetti BL Lac |
| BL Lacertae object | Oggetti BL Lacertae |
| bla | insignificante |
| blaa | insignificante |
| Blaabjerg | Blaabjerg |
| Blaarkop | Groninga |
| blab | schiccherare |
| blabber | pettegolo |
| blabbering | chiacchierone |
| blabbermouth | chiacchierone |
| Blabla | Tarentola mauritanica |
| Blace | Blace |
| Blachernae | Palazzo delle Blacherne |
| Blachthorn | Prunus spinosa |
| black | oscuro |
| Black Act | Black Act |
| black alder | ontano nero |
| Black and White in Color | Bianco e nero a colori |
