| Bitis | Bitis |
| Bitis gabonica | Bitis gabonica |
| Bitlis Province | Provincia de Bitlis |
| bitmap | mapa de bits |
| Bitmap graphics editor | Editor de gráficos de mapa de bits |
| BITNET | Bitnet |
| Bitola | Bitola |
| Bitola municipality | Bitola |
| Bitonto | Bitonto |
| bits per second | bits por segundo |
| Bitsch | Bitsch |
| BitSpirit | BitSpirit |
| bitstock | berbiquí |
| bitt | bita |
| bitter | resentido |
| bitter harangue | invectiva |
| bitter melon | melón amargo |
| Bitter Sweet Symphony | Bitter sweet symphony |
| bitter-ender | intransigente |
| Bitterballen | Bitterballen |
| Bitterfeld | Distrito de Bitterfeld |
| bitterly | amargar |
| bittern | avetoro |
| bitterness | rencor |
| bitters | gotas amargas |
| bittersweet | dulcamara |
| BitTornado | BitTornado |
| BitTorrent | BitTorrent |
| BitTorrent client | Cliente BitTorrent |
| BitTorrent tracker | Tracker |
| bitumen | betún |
| bituminous | bituminoso |
| Bituminous peat | Turba |
| Bituminous shale | Pizarra bituminosa |
| Biu-Mandara languages | Lenguas biu-mandara |
| Biuret | Biuret |
| Biuret reagent | Reactivo del biuret |
| bivalent | bivalente |
| bivalve | bivalvo |
| Bivalves | Bivalvia |
| Bivalvia | Bivalvia |
| Bivio | Bivio |
| bivouac | acampar |
| biweekly | quincenal |
| Bix Beiderbecke | Bix Beiderbecke |
| Bixente Lizarazu | Bixente Lizarazu |
| Biya River | Bía |
| Biyomon | Biyomon |
| bizarre | raro |
| Bizerta | Bizerta |
| Bizerte | Bizerta |
| Bizerte Governorate | Bizerta |
| BizkaiBus | Bizkaibus |
| Bière | Bière |
| Bié | Bié |
| Biłgoraj | Biłgoraj |
| Bjarne Stroustrup | Bjarne Stroustrup |
| Bjorn Borg | Björn Borg |
| Bjurholm Municipality | Bjurholm |
| Bjuv Municipality | Bjuv |
| Björk | Björk |
| Björn Borg | Björn Borg |
| Björn Dunkerbeck | Björn Dunkerbeck |
| Björn Phau | Björn Phau |
| Björn Ulvaeus | Björn Ulvaeus |
| Bjørn Lomborg | Bjørn Lomborg |
| Bjørnstjerne Bjørnson | Bjørnstjerne Bjørnson |
| Bjørnøya | Bjørnøya |
| BL Herculis star | Estrellas BL Herculis |
| BL Lac object | objeto BL Lac |
| BL Lacertae object | Objeto BL Lacertae |
| Blaarkop | Groninga |
| blab | cotillear |
| blabber | charlatán |
| blabbering | facundo |
| blabbermouth | charlatán |
| Blachthorn | Prunus spinosa |
| black | oscuro |
