| bestial | cruel |
| bestiality | bestialidad |
| bestir oneself to | moverse |
| Bestla | Bestla |
| bestow | dar |
| bestow a medal on | condecorar |
| bestowal | dádiva |
| bestowing | otorgamiento |
| bestseller | éxito de librería |
| Besòs | Besós |
| bet | opinión |
| bet on | apostar a |
| beta | beta |
| Beta Andromedae | Mirach |
| Beta Aquarii | Beta Aquarii |
| Beta Aquilae | Alshain |
| Beta Canis Maioris star | Estrellas Beta Canis Majoris |
| Beta Cassiopeiae | Caph |
| Beta cell | Células beta |
| Beta Cephei star | Estrellas Beta Cephei |
| Beta Cephei variable | Estrella variable Beta Cephei |
| Beta Colony | Colonia Beta |
| Beta Crucis | Becrux |
| Beta decay | Desintegración beta |
| Beta function | Función beta |
| Beta Israel | Beta Israel |
| Beta Leporis | Nihal |
| Beta Librae | Zubeneschamali |
| Beta Lyrae | Beta Lyrae |
| Beta Lyrae star | Estrellas Beta Lyrae |
| Beta Ophiuchi | Cebalrai |
| Beta oxidation | Beta oxidación |
| beta radiation | radiación beta |
| Beta Scorpii | Acrab |
| Beta sheet | Beta-lámina |
| Beta Tauri | Beta Tauri |
| Beta Ursae Majoris | Merak |
| Beta Ursae Minoris | Kochab |
| Beta Virginis | Zavijava |
| beta wave | onda beta |
| Beta-lactam | Antibiótico betalactámico |
| Beta-lactam antibiotic | Antibiótico betalactámico |
| Betacism | Betacismo |
| Betaherpesvirinae | Betaherpesvirinae |
| Betanzos | Betanzos |
| Betar | Beitar |
| Betasuchus | Betasuchus |
| betel | betel |
| Betelgeuse | Betelgeuse |
| Beth Allen | Beth Allen |
| Beth Anderson | Música |
| Bethany | Betania |
| Bethlehem | Belén |
| Bethlehem of Galilee | Belén |
| Bethlehem scene | nacimiento |
| Bethsaida | Betsaida |
| Betim | Betim |
| betimes | a buena hora |
| Betis | Betis |
| Betla National Park | Parque Nacional de Betla |
| Beto Vázquez Infinity | Beto Vázquez Infinity |
| betoken | presagiado |
| betony | betónica |
| betray | engañar |
| betrayal | traición |
| betrayer | delator |
| betroth | desposar |
| betrothal | esponsales |
| betrothed | comprometido |
| betrothment | esponsales |
| Betschwanden | Betschwanden |
| Bette Davis | Bette Davis |
| Bette Midler | Bette Midler |
| Betten | Betten |
| Bettens | Bettens |
| better | mejor |
| better half | media naranja |
| better late than never | más vale tarde que nunca |
| better than | más que |
| Better Than Chocolate | Better than Chocolate |
| betterment | mejora |
| betting | apostar |
| Betting forecast | Pronóstico en medicina |
| Bettingen | Bettingen |
| Bettino Craxi | Bettino Craxi |
| Betty Boop | Betty Boop |
| Betty Carter | Betty Carter |
| Betty Ford | Betty Ford |
| Betty Hutton | Betty Hutton |
| Betty Robinson | Elizabeth Robinson |
| Betty Williams | Betty Williams |
| Betula | Betula |
| Betulaceae | Betulaceae |
| Betwa River | Betwa |
| between | entre |
| Between Order and Model | Between Order And Model |
| between Scylla and Charybdis | entre la espada y la pared |
| Between the Buttons | Between the Buttons |
| between times | entretanto |
