| Brothers | hermanos |
| brothers and sisters | hermanos |
| Brothers Grimm | Hermanos Grimm |
| Brothers in Arms | Band of Brothers |
| Brought forward | Suma y sigue |
| Broughtonia | Broughtonia |
| brouhaha | alboroto |
| brow | ceja |
| browbeat | intimidar |
| browbeating | amenaza |
| brown | dorar |
| Brown alga | Phaeophyta |
| Brown algae | Phaeophyceae |
| Brown Antechinus | Antechinus stuartii |
| Brown basilisk | Basiliscus vittatus |
| brown bear | oso pardo |
| Brown Booby | Sula leucogaster |
| Brown bream | Abramis brama |
| Brown County | Condado de Brown |
| brown dwarf | enana marrón |
| Brown Eared Pheasant | Crossoptilon mantchuricum |
| Brown Falcon | Falco berigora |
| Brown Four-eyed Opossum | Metachirus |
| Brown lemur | Eulemur |
| Brown Lory | Chalcopsitta duivenbodei |
| brown noser | pelota |
| Brown Pelican | Pelecanus occidentalis |
| Brown rat | Rattus norvegicus |
| Brown recluse spider | Araña reclusa parda |
| Brown sauce | Glycine |
| Brown Skua | Catharacta antarctica |
| brown sugar | azúcar moreno |
| Brown Tinamou | Crypturellus obsoletus |
| Brown University | Universidad de Brown |
| Brown Woolly Monkey | Lagothrix lagotricha |
| brown-eyed | de ojos marrones |
| brown-haired | castaño |
| Brown-hooded Gull | Larus maculipennis |
| brown-nose | adular |
| Brown-throated Three-toed Sloth | Bradypus variegatus |
| Brownian bridge | Puente Browniano |
| Brownian motion | Movimiento browniano |
| Brownian movement | Movimiento browniano |
| Brownian noise | Ruido marrón |
| Brownie | niña exploradora |
| Brownie Girl Scout | niña exploradora |
| browning | dorado |
| Browning Hi-Power | Browning Hi-Power |
| Browningia | Browningia |
| brownish | pardusco |
