| calibration | graduación |
| calibre | calibre |
| Caliche | Caliche |
| Caliciviridae | Caliciviridae |
| calico | calicó |
| Calico Jack | Jack el Calicó |
| Calicotome spinosa | Genista scorpius |
| Calidrid | Scolopacidae |
| Calif | California |
| Califate | Califa |
| California | California |
| California - Sacramento | Estado de los Estados Unidos de América |
| California Condor | Gymnogyps californianus |
| California Current | Corriente de California |
| California dissanthelium | Dissanthelium |
| California Gold Rush | Fiebre del oro de California |
| California Ground Squirrel | Ardillón de California |
| California Incense Cedar | Calocedrus decurrens |
| California Institute of Technology | Instituto Tecnológico de California |
| California poppy | Eschscholzia californica |
| California Sea Lion | Zalophus californianus |
| California State University | Universidad Estatal de California |
| California Suite | California Suite |
| California Trail | Ruta de California |
| Californian | californiano |
| californium | californio |
| Californosaurus | Californosaurus |
| Caligraphy | Caligrafía |
| Caligula | Calígula |
| Calilegua National Park | Parque Nacional Calilegua |
| caliper | compás de calibre |
| calipers | calibre |
| caliph | califa |
| Caliph of Cordoba | Califato de Córdoba |
| Caliph of Córdoba | Califato de Córdoba |
| caliphate | califato |
| Calippus | Calipo |
| Calippus of Syracuse | Calipo |
| Calisota | Calisota |
| Calista Flockhart | Calista Flockhart |
| calisthenics | calistenia |
| Calitri | Calitri |
| Calixto García | Calixto García |
| calk | calafatear |
| Calkulate | Cálculo aritmético |
| call | calificar |
| call a spade a spade | llamar al pan, pan y al vino, vino |
| call a witness | llamar al testigo |
| call an ambulance | llame una ambulancia |
| Call and response | Llamada y respuesta |
| call attention to | señalar |
