| recycling | reciclaje |
| recycling management and waste law | gestión de reciclaje y ley de residuos |
| recycling potential | potencial de reciclaje |
| recycling ratio | cociente de reciclaje |
| Recópolis | Recópolis |
| red | pelirrojo |
| Red Acouchi | Myoprocta acouchy |
| red admiral | vanesa atalanta |
| Red algae | Rhodophyta |
| Red Army | Ejército Rojo |
| Red Army Faction | Fracción del Ejército Rojo |
| Red Arrow | Aranrúth |
| red as a beet | colorado como un tomate |
| Red bean paste | Anko |
| Red Beard | Barbarroja |
| red beet | remolacha |
| Red Bird of Paradise | Paradisaea rubra |
| Red blood | Fuerza |
| red blood cell | glóbulo rojo |
| Red Book | Red Book |
| Red Book of Westmarch | Libro Rojo de la Frontera del Oeste |
| Red Brigades | Brigadas Rojas |
| Red Brocket | Mazama americana |
| Red Bull | Red Bull |
| Red Bull Air Race World Series | Red Bull Air Race World Series |
| Red Bull New York | Red Bull New York |
| Red Bull Racing | Red Bull Racing |
| Red Buttons | Red Buttons |
| Red Cloud | Nube Roja |
| Red colobus | Piliocolobus |
| red corpuscle | glóbulo rojo |
| Red Crescent | Cruz Roja |
| Red Cross | Cruz Roja |
| Red Cross ambulances hit by Israeli strike | Misiles israelíes alcanzan ambulancias de la Cruz Roja |
| red currant | grosella |
| red deer | ciervo rojo |
| Red Dragon | Red Dragon |
| Red dwarf | Enana roja |
| Red Flag Party | Partido Bandera Roja |
| Red Fort | Fuerte rojo de Delhi |
| Red Fox | Vulpes vulpes |
| Red giant | Gigante roja |
| red gilthead | besugo |
| Red Guards | Guardia Roja |
| Red hair | Rutilismo |
| Red Harvest | Cosecha Roja |
| Red Hat Certification Program | Programa de Certificación de Red Hat |
| Red head | Citrus reticulata |
| Red Hot Chili Peppers | Red Hot Chili Peppers |
| Red House | Red House |
| Red Indian | Indio |
| Red inverted triangle | Triángulo rojo |
| Red Jacket | Red Jacket |
| Red Junglefowl | Gallus gallus |
| Red Kangaroo | Macropus rufus |
| red kite | milano real |
| red light | luz roja |
| red meat | carne de res |
| Red mercury | Mercurio rojo |
| red mullet | salmonete |
| Red of dawn | Aurora |
| Red Panda | Ailurus fulgens |
| red pepper | pimiento rojo |
| Red Planet | Planeta rojo |
| Red Riding Hood | Caperucita Roja |
| Red River | Río Rojo |
| Red Ruffed Lemur | Varecia rubra |
| Red scorpion fish | Scorpaena Scrofa |
| Red Screen of Death | Blue screen of death |
| Red Sea | Mar Rojo |
| Red Sea Governorate | Mar Rojo |
| Red Shirts | Camisas Rojas |
| Red Shoveler | Anas platalea |
| Red Skull | Red Skull |
| Red Slender Loris | Loris tardigradus |
| Red Sorghum | Sorgo rojo |
| Red Square | Plaza Roja |
| Red star | Estrella roja |
| Red Star Belgrade | Estrella Roja de Belgrado |
| Red states and blue states | Estados Rojos y Estados Azules |
| Red supergiant | Supergigante roja |
| red table wine | vino tinto de mesa |
| red tape | papeleo |
| Red telephone | Teléfono rojo |
| red tide | marea roja |
| Red Tornado | Tornado Rojo |
| Red Volta | Volta Rojo |
| Red-and-green Macaw | Ara chloroptera |
| Red-bellied Lemur | Eulemur rubriventer |
| Red-billed Blue Magpie | Urocissa erythrorhyncha |
| Red-billed chough | Pyrrhocorax pyrrhocorax |
| Red-billed Curassow | Crax blumenbachii |
| Red-billed Hornbill | Tockus erythrorhynchus |
| Red-billed Leiothrix | Leiothrix lutea |
| Red-black tree | Árbol rojo-negro |
| red-blooded | vigoroso |
| Red-breasted Toucan | Ramphastos dicolorus |
| Red-collared Lorikeet | Trichoglossus rubritorquis |
| Red-crested Turaco | Tauraco erythrolophus |
| Red-deer | Ciervo común |
| Red-eared slider | Trachemys scripta elegans |
| red-eyed | de ojos enrojecidos |
| Red-faced Lovebird | Agapornis pullarius |
| Red-faced Spider Monkey | Ateles |
| Red-fan Parrot | Deroptyus accipitrinus |
| Red-figure pottery | Cerámica de figuras rojas |
| Red-footed Booby | Sula sula |
| Red-footed tortoise | Geochelone carbonaria |
| Red-fronted Gazelle | Gazella rufifrons |
| Red-fronted Macaw | Ara rubrogenys |
| red-haired | pelirrojo |
| Red-Haired Shanks | Shanks |
| red-handed | en flagrante delito |
