| bontà | generosidad |
| bonus | bono |
| Bonus track | Bonus track |
| Bonvi | Franco Bonvicini |
| Bonvillars | Bonvillars |
| bonzo | bonzo |
| Bonzée | Bonzée |
| Bonţida | Bonţida |
| BOO | Boo |
| Boogeyman | El Coco |
| boogie-woogie | bugui-bugui |
| BookCrossing | Bookcrossing |
| Booker Huffman | Booker Huffman |
| bookmaker | corredor de apuestas |
| Bookmarklet | Bookmarklet |
| booleano | booleano |
| boom | boom |
| boom sonico | explosión sónica |
| boomerang | bumerang |
| Boone Carlyle | Boone Carlyle |
| Boorama | Boorama |
| Boot Camp | Boot Camp |
| Boot record | Boot Record |
| Boot sector | Master Boot Record |
| Boote | Boötes |
| Bootleg | Bootleg |
| Bootleg ufficiali dei Pearl Jam | Bootlegs de Pearl Jam |
| BOOTP | Bootstrap Protocol |
| Bootstrap | Bootstrapping |
| Boqueixón | Boqueijón |
| Boqueria | La Boqueria |
| Boquerón | Departamento Boquerón |
| Bor | Boro |
| Bora Milutinović | Bora Milutinović |
| borace | bórax |
| Boraginaceae | Boraginaceae |
| Borago | Borago |
| Borago officinalis | Borago officinalis |
| Borani | Borano |
| Borat | Borat |
| Borbone | Casa de Borbón |
| Borbone di Spagna | Casa de Borbón en España |
| borbottamento | refunfuño |
| borbottare | refunfuñar |
| borbottio | gruñido |
| borbugliare | borbollar |
| Borchiato | Bollonado |
| Bord-Saint-Georges | Bord-Saint-Georges |
| bordare | ribetear |
| bordata d'ingiurie | andanada verbal |
| bordeaux | Bordeaux |
| bordello | prostíbulo |
| Border Collie | Collie de la frontera |
| Border Gateway Protocol | Border Gateway Protocol |
| Bordertown | La ciudad del silencio |
| Bordj Bou Arreridj | Provincia de Bordj Bou Arréridj |
| bordo | saliente |
| bordo del marciapiede | bordillo |
| bordo libero | obra muerta |
