| Subject | English | Spanish |
| tech. | bearing big end or rod end | cojinete de cabeza de biela |
| transp. | big bag | contenedor plegable |
| commer. | big bags | sacos de gran capacidad |
| agric. | big bale press | empacadora de grandes pacas |
| agric. | big baler | empacadora de grandes pacas |
| IMF. | big bang | reforma radical |
| IMF. | big bang | gran reforma |
| IMF. | big bang | el Big Bang |
| IMF. | big bang | programa de reformas "big bang" |
| IT | "big bang" integration | integración tipo "bing-bang" |
| IT | "big bang" integration | integración no incremental |
| IMF. | big bang reform | reforma radical |
| IMF. | big bang reform | el Big Bang |
| IMF. | big bang reform | gran reforma |
| IMF. | big bang reform | programa de reformas "big bang" |
| IT | Big Blue | Sociedad Internacional de Material Electrónico |
| forestr. | big-branched | con ramas grandes |
| agric. | big brokens | picón grande |
| agric. | big brokens | arroz quebrado grande |
| agric. | big brokens | medianos grandes |
| forestr. | big butt sawlog | trozas de aserrío grandes |
| agric. | big capacity spreader | abonadora de gran trabajo |
| gen. | big cat | gato grande |
| social.sc., nat.res. | big chief | mescal |
| social.sc., nat.res. | big chief | peyote |
| social.sc., nat.res. | big chief | botón de mescalina |
| cultur. | big close up | primerísimo plano |
| bot. | big cone pine | pino sabina Pinus coulteri, Pinus sabiniana |
| bot. | big cone pine | pino gris Pinus coulteri, Pinus sabiniana |
| IT, industr. | Big Data | datos masivos |
| IT | big data | macrodatos |
| IT | big data | inteligencia de datos |
| IT | big data | datos masivos |
| nat.sc., agric. | big deervetch | loto de los pantanos (Lotus pedunculatus Auct.non Cav., Lotus pendunculatus, Lotus uliginosus Schkuhr, Lotus uliginosus) |
| nat.sc., agric. | big deervetch | loto cenagoso (Lotus pedunculatus Auct.non Cav., Lotus pendunculatus, Lotus uliginosus Schkuhr, Lotus uliginosus) |
| astr. | Big Dipper | Osa Mayor |
| gen. | big dog | perro grande |
| cultur. | big drum | bombo |
| tech. | big end | cabeza de biela |
| tech. | big-end bearing | cojinete de la cabeza de biela |
| met. | big end down | lingotera de conicidad directa |
| mech.eng. | big end half bearing | semicojinete |
| mech.eng. | big end half bearing | medio cojinete |
| mech.eng. | big end half bearing | casquillo |
| mech.eng. | big-end journal | cuello |
| mech.eng. | big-end journal | gorrón |
| mech.eng. | big-end journal | apoyo de bancada |
| met. | big end up | lingotera de conicidad inversa |
| ichtyol. | Big-eye anchovy | Anchoa ojona Anchoa lamprotaenia |
| fish.farm. | big-eye herrings | arenques redondos (Etrumeus spp.) |
| nat.sc., agric. | big-eye scad | chicharro ojón (Selar crumenophthalmus) |
| fish.farm. | big-eye thresher | zorro ojón (Alopias superciliosus) |
| ecol. | big-footed | patón |
| environ. | big game Large wild animals that weigh typically more than 30 lb when fully grown, hunted for food, sport or profit | gamo grande |
| environ. | big game | gamo grande |
| ecol. | big game | caza mayor |
| crim.law., law, int. law. | big game hunting | caza mayor |
| ecol. | big game hunting | montería |
| fish.farm. | big goby | gobio negro (Gobius jozo, Gobius niger jozo, Gobius niger(Linnaeus,1758)) |
| fish.farm. | big goby | lorcha (Gobius jozo, Gobius niger jozo, Gobius niger(Linnaeus,1758)) |
| fish.farm. | big goby | chaparrudo (Gobius jozo, Gobius niger jozo, Gobius niger(Linnaeus,1758)) |
| fish.farm. | big goby | gobio gigante (Gobius capito, Gobius cobitis) |
| vet.med. | big head | osteofibrosis |
| vet.med. | big head | osteodistrofia fibrosa |
| entomol. | big head screwworm fly | mosca del gusano barrenador de cabeza grande Chrysomya megacephala (F.) |
| med. | big heel | hipertrofia endémica del calcáneo |
| nat.sc., agric. | big-jaw | actinomicosis del ganado bovino |
| bot. | big laurel | laurel tulipán Magnolia grandiflora |
| bot. | big laurel | magnolia Magnolia grandiflora |
| life.sc. | big-leaf mahogany | caoba americana (Swietenia macrophylla) |
| life.sc. | big-leaf mahogany | caoba (Swietenia macrophylla) |
| bot. | big leaf maple | arce de hoja grande Acer macrophyllum |
| baseb. | big leagues | grandes ligas |
| commun., el. | big LEO | grande LEO |
| commun. | "big LEO" service | servicio "big LEO" |
| gen. | big mouth | boca grande |
| med. | big nose | gundo (leontiasis ossium framboesica) |
| med. | big nose | anakre (leontiasis ossium framboesica) |
| med. | big nose | henpue (leontiasis ossium framboesica) |
| med. | big nose | goundou (leontiasis ossium framboesica) |
| market., insur. | big O | opio |
| earth.sc. | big one | el gran terremoto |
| meteorol. | big picture | panorama amplio |
| meteorol. | big picture | vista general |
| meteorol. | big picture | panorama general |
| tech. | big picture | panaroma total |
| agric. | big plucker | plumadora grande |
| ichtyol. | big powan | coregono Coregonus peled |
| ichtyol. | big powan | coregono peled Coregonus peled |
| fish.farm. | big powan | coregono peled (Coregonus peled) |
| econ. | big-push theory | teoría del impulso fuerte |
| nat.sc., agric. | big quackinggrass | briza (Briza maxima L.) |
| nat.sc., agric. | big quackinggrass | cedacillo (Briza maxima L.) |
| nat.sc., agric. | big quackinggrass | pendientes (Briza maxima L.) |
| nat.sc., agric. | big quackinggrass | tembladera (Briza maxima L.) |
| nat.sc., agric. | big quackinggrass | hierba del aire (Briza maxima L.) |
| nat.sc., agric. | big quackinggrass | caracolillos (Briza maxima L.) |
| nat.sc., agric. | big quackinggrass | bailarines (Briza maxima L.) |
| baseb. | Big Red Machine | Gran Maquinaria Roja |
| nat.sc. | big science | ciencia pesada |
| R&D. | big science activity | programas científicos de gran envergadura |
| bot. | big-seed false flax | sésamo bastardo Camelina sativa |
| bot. | big-seed false flax | camelina Camelina sativa |
| IT, dat.proc. | big-size character | carácter de tamaño grande |
| fish.farm. | big skate | raya manchada americana (Leucoraja ocellata, Raja ocellata) |
| commun. | big-ticket | costoso |
| commun. | big-ticket | caro |
| med. | big toe | dedo gordo del pie (hallux) |
| gen. | big tongue | lengua grande |
| agric. | big tree | árbol del mammut (Sequoia gigantea, Sequoiadendron giganteum, Wellingtonia gigantea) |
| agric. | big tree | sequoia gigante (Sequoia gigantea, Sequoiadendron giganteum, Wellingtonia gigantea) |
| nat.sc., agric. | big trefoil | loto de los pantanos (Lotus pedunculatus Auct.non Cav., Lotus pendunculatus, Lotus uliginosus Schkuhr, Lotus uliginosus) |
| bot. | big trefoil | cuernecillo de los pantanos Lotus pedunculatus |
| pack. | big-volume case | caja de gran volumen |
| pack. | big-volume case | caja de gran contenido |
| pack. | big-volume package | embalaje pesado |
| pack. | big-volume package | de gran contenido |
| pack. | big-volume package | para materiales pesados |
| pack. | big-volume package | embalaje de gran contenido (transport package, shipping container, exterior package, outer, embalaje de transporte o de expedición, embalaje exterior, sobreembalaje) |
| gen. | Domestic cats are common pets, but big cats are dangerous | Los gatos domésticos son mascotas comunes, pero los gatos grandes son peligrosos |
| gen. | I have a big problem | tengo un gran problema |
| fin. | immediate big bang | "big bang" inmediato |
| gen. | it does not suit me, it is too big | no me conviene, demasiado grande |
| gen. | it is big but inexpensive | es grande, pero barato |
| gen. | let's see the big picture | vamos la imagen complete |
| pest.contr. | lettuce big-vein | enfermedad de la vena grande de la lechuga |
| pest.contr. | lettuce big-vein | virus del engrosamiento de las nerviaduras de la lechuga |
| pest.contr. | lettuce big-vein | virus del engrosamiento de las nervaduras de la lechuga |
| pest.contr. | lettuce big-vein | virus de la vena grande de la lechuga |
| pest.contr. | lettuce big-vein | virus de las venas grandes de la lechuga |
| health., nat.res. | lettuce big vein virus | virus de la hipertrofia de las nerviaciones de la lechuga |
| gen. | madam, this house is very big | señora, esta casa es muy grande |
| med. | painful big toe | hallus doloroso (hallux dolorosus) |
| social.sc. | policy of the big stick | política de mano dura |
| mech.eng. | running out of big end bearing cap | biela fundida |
| mech.eng. | running out of big end bearing cap | biela agarrotada |
| agric. | spreader with big capacity hopper | abonadora de gran capacidad |
| agric. | spreader with big capacity hopper | abonadora de gran trabajo |
| med. | stiff big toe | hallux rigidus |
| gen. | The government decided to levy other taxes to big business | El gobierno decidió gravar los impuestos restantes a las grandes empresas |
| gen. | The teenage boy has a big pimple on his chin | El adolescente tiene un granito en la barbilla |
| gen. | The woman has a big mouth | La mujer tiene una boca grande |
| gen. | There is a mouse in the house, and it's a big problem | Hay un ratón en la casa y es un gran problema |
| gen. | they are big and good | son grandes y buenos |
| gen. | they live in a big apartment | ellos viven en un apartamento grande |
| gen. | this building is big | este edificio es grande |
| gen. | this section is big | esta sección es grande |
| IMF. | too big to fail criterion, bank | "demasiado grande para quebrar" |
| fin. | too big to fail | demasiado grande para hundirse |
| fin. | too big to fail | demasiado grande para quebrar |
| fin. | too big to fail | demasiado grande para caer |
| econ., fin. | "too big to fail" institution | entidad demasiado grande para quebrar |
| gen. | your house is very big | vuestra casa es muy grande |
| gen. | your house is very big | tu casa es muy grande |
| gen. | your house is very big | su casa es muy grande |
