| Clos Lucé | Castillo de Clos-Lucé |
| close | terminar |
| close again | volver a cerrar |
| Close air support | Close Air Support |
| close attention | atención |
| Close back rounded vowel | Vocal cerrada posterior redondeada |
| Close binary star | Binaria cerrada |
| close down | liquidar |
| Close Encounters of the Third Kind | Close Encounters of the Third Kind |
| close examination | escrutinio |
| Close front rounded vowel | Vocal cerrada anterior redondeada |
| Close front unrounded vowel | Vocal cerrada anterior no redondeada |
| close in | cercar |
| Close packing | Empaquetamiento de esferas |
| close season | veda |
| close time | veda |
| close to | cerca de |
| Close to Home | Close to Home |
| Close with | Cerrar con |
| close-cropped | rapado |
| close-cut | rapado |
| close-fisted | avaro |
| close-fitting | ajustado |
| close-grained | de grano fino |
| Close-in weapon system | CIWS |
| close-knit | estrecho |
| Close-mid front rounded vowel | Vocal entre semicerrada y media anterior redondeada |
| Close-packing | Empaquetamiento de esferas |
| close-set | muy juntos |
| close-shaven | bien afeitado |
| close-up | primer plano |
| closed | cerrado |
| Closed and exact differential forms | Formas diferenciales cerradas y exactas |
| Closed captioning | Closed Caption |
| Closed ecological system | Sistema ecológico cerrado |
| Closed set | Conjunto cerrado |
| Closed source | Código cerrado |
| Closed source software | Código cerrado |
| closefisted | ro oso |
| closely | cuidadosamente |
| closely guarded secret | secreto bien guardado |
| closely resemble | parecerse mucho |
| closemouthed | callado |
| closeness | cercania |
| closer | más cerca |
| closest | projimo |
| closest friend | amigo íntimo |
| closest to | junto a |
| closet | baño |
| closing | concluyente |
| closing down | clausura |
| closing down of firm | cierre de fábrica |
| closing price | cotización de cierre |
| closing time | hora de cierre |
| Clostridium tetani | Clostridium tetani |
| closure | basta |
| clot | cuajar |
| cloth | revestir |
| Cloth Myth | Myth Cloth |
| clothe | vestir |
| clothes | ropa |
| clothes don't make the man | el hábito no hace al monje |
| clothes for ironing | ropa para planchar |
| clothes hanger | colgador de ropa |
| clothes peg | broche |
| clotheshorse | tendedero |
| clothesline | tendedero |
| clothespin | pinza para tender ropa |
| clothier | ropero |
| Clothilde of France | Clotilde de Francia |
| clothing | vestuario |
| clothing industry | industria de la confección |
| Clotho | Cloto |
| Clotilda | Clotilde |
| clots | pella |
| clotted | espeso |
| clotting | coagulación |
| cloture | obturador |
| cloud | nublarse |
| Cloud City | Ciudad Nube |
| cloud computing | computación en la nube |
| cloud nine | séptimo cielo |
| cloud over | nublarse |
| Cloud Strife | Cloud Strife |
| cloud up | nublarse |
| cloud-cuckoo-land | estar |
| cloudberry | mora ártica |
| cloudburst | aguacero |
| clouded | nubado |
| Clouded apollo | Mnemósine |
| clouded leopard | pantera nebulosa |
| cloudily | nubloso |
| cloudiness | nubosidad |
| cloudless | despejado |
| clouds | nubes |
| cloudy | cubierto |
| Clouseau | Closeau |
| clout | trapo |
| clove | clavo de especia |
| cloven | rajado |
| cloven-footed | de pezuña hendida |
| clover | trébol |
| cloverleaf | cruce de trébol |
| Clovis culture | Cultura Clovis |
| Clovis I | Clodoveo I |
| Clovis II | Clodoveo II |
| Clovis III | Clodoveo III |
| Clovis IV | Clodoveo IV |
| clown | clown |
