| Colossae | Colosas |
| colossal | enorme |
| Colossal Cave Adventure | Colossal Cave Adventure |
| Colossal magnetoresistance | Magnetorresistencia colosal |
| Colossal Squid | Mesonychoteuthis hamiltoni |
| Colosseum | Coliseo de Roma |
| Colossi of Memnon | Colosos de Memnón |
| colossus | gigante |
| Colossus class aircraft carrier | Clase Colossus |
| Colossus computer | Colossus |
| Colossus of Rhodes | Coloso de Rodas |
| colostrum | calostro |
| colour | color |
| colour composition | composición cromática |
| Colour depth | Profundidad de color |
| Colour of the skin | Color de piel |
| colourable | colorado |
| coloured | pintado |
| colourful | colorde |
| colourimetry | colorimetriea |
| colourless | incoloro |
| Colpitts oscillator | Oscilador Colpitts |
| Colpocephaly | Colpocefalia |
| colposcope | colpóscopo |
| Colposcopy | Colposcopia |
| colt | potro |
| colter | cuchilla |
| coltsfoot | fárfara |
| Coluber | Natricinae |
| colubrid | culebra |
| Colubrinae | Colubrinae |
| Coluccio Salutati | Coluccio Salutati |
| Coluche | Michel Colucci |
| colugo | colugo |
| Colugos | Dermoptera |
| Columba | Columba |
| Columba of Sens | Columba de Sens |
| Columbia | Columbia |
| Columbia County | Condado de Columbia |
| Columbia Generating Station | Central Nuclear Columbia |
| Columbia Icefield | Campo de Hielo Columbia |
| Columbia Records | Columbia Records |
| Columbia River | Oregon |
| Columbia University | Universidad Columbia |
| Columbian | romana |
| Columbidae | Columbidae |
| Columbiformes | Columbiformes |
| columbine | aguileña |
| Columbine High School massacre | Masacre del instituto Columbine |
| Columbretes Islands | Islas Columbretes |
| Columbus | Columbus |
| Columbus Crew | Columbus Crew |
| Columbus Day | Día de la Raza |
| columella | columela |
| column | fisura |
