| Cyperus | Cyperus |
| Cyperus alternifolius | Cyperus alternifolius |
| Cyperus esculentus | Cyperus esculentus |
| Cyperus papyrus | Cyperus papyrus |
| cypres | ciprés |
| cypress | ciprés |
| Cypress Hill | Cypress Hill |
| Cypria | Cipria |
| Cyprian | Cipriano de Cartago |
| Cyprien Ntaryamira | Cyprien Ntaryamira |
| Cyprinid | Cyprinidae |
| Cypriniformes | Cypriniformes |
| Cyprinodontiformes | Atheriniformes |
| Cyprinus | Cyprinidae |
| Cypriot | chipriota |
| Cypriot First Division | Primera División de Chipre |
| Cypriot Orthodox Church | Iglesia Ortodoxa Chipriota |
| Cypriot pound | Libra chipriota |
| Cypriot proverbs | Proverbios chipriotas |
| Cypripedium | Cypripedium |
| Cypripedium acaule | Cypripedium acaule |
| Cypripedium calceolus | Cypripedium calceolus |
| Cyprus | Chipre |
| Cyprus Airways | Cyprus Airways |
| Cyprus Broadcasting Corporation | Cyprus Broadcasting Corporation |
| Cyprus DLR station | Chipre |
| Cyprus Football Association | Asociación de Fútbol de Chipre |
| Cyprus in the Eurovision Song Contest | Chipre en el Festival de la Canción de Eurovisión |
| Cyprus national football team | Selección de fútbol de Chipre |
| Cyprus Stock Exchange | Bolsa de valores de Chipre |
| Cypselus | Cipselo |
| Cyrano de Bergerac | Cyrano de Bergerac |
| Cyrenaica | Cirenaica |
| Cyrenaics | Escuela cirenaica |
| Cyrene | Cirene |
| Cyrenian | cirenaico |
| Cyril | Cirilo |
| Cyril Norman Hinshelwood | Cyril Norman Hinshelwood |
| Cyril of Alexandria | Cirilo de Alejandría |
| Cyril of Jerusalem | Cirilo de Jerusalén |
| Cyril Raffaelli | Cyril Raffaelli |
| Cyril Scott | Cyril Meir Scott |
| Cyrilic script | Alfabeto cirílico |
| Cyrillic | cirílico |
| Cyrillic alphabet | cirílico |
| Cyrillic numerals | Numeración cirílica |
| Cyrillization | cirilización |
| Cyrillization of Chinese from pinyin | Cirilización del chino mandarín |
| Cyrillization of Japanese | Cirilización del japonés |
| Cyrus | Ciro |
| Cyrus cylinder | Cilindro de Ciro |
| Cyrus I of Anshan | Ciro I |
| Cyrus IMAP server | Ciro |
| Cyrus the Great | Ciro II el Grande |
| Cyrus the Younger | Ciro el Joven |
| Cyrus Vance | Cyrus Vance |
| Cyrus West Field | Cyrus West Field |
| cyst | quiste |
| cysteine | cisteína |
| cystic | cístico |
| cystic fibrosis | fibrosis quística |
| Cysticercosis | Cisticercosis |
| cystitis | cistitis |
| cystoscopy | citoscopia |
| cystotomy | cistostomía |
| Cystovirus | Cystoviridae |
| Cythera | Citera |
| cytisine | citisina |
| Cytisus scoparius | Retama sphaerocarpa |
| cyto- | cito- |
| cytoarchitecture | citoarquitectura |
| cytochemistry | citoquímica |
| cytochrome | citocromo |
| cytogenetic | citogenético |
| cytokine | citocina |
| cytological | citológico |
| cytologist | citólogo |
| cytology | citología |
| cytoplasm | citoplasma |
| Cytoplasma | Citoplasma |
| cytoplasmic | citoplasmático |
| cytoreduction | citorreducción |
| Cytosine | Citosina |
| Cytoskeleton | Citoesqueleto |
| cytosol | citosol |
| cytosolic | citosólico |
| cytotoxic | citotóxico |
| cytotoxicity | citotoxicidad |
| Cyzicus | Cícico |
| CZ | Catanzaro |
| czar | zar |
| czarina | zarina |
| Czartoryski Museum | Museo Czartoryski |
| Czech | checo |
| Czech Airlines | Czech Airlines |
| Czech alphabet | Alfabeto checo |
| Czech and Slovak Orthodox Church | Iglesia Ortodoxa Checa y Eslovaca |
| Czech car number plates | Matrículas automovilísticas de Eslovaquia |
| Czech cuisine | Gastronomía de República Checa |
| Czech hedgehog | erizo checo |
| Czech koruna | Corona checa |
| Czech lands | Países Checos |
| Czech language | Idioma checo |
| Czech man | Idioma checo |
| Czech Philharmonic | Orquesta Filarmónica Checa |
| Czech Republic | Chequia |
| Czech Republic national football team | Selección de fútbol de la República Checa |
| Czech Republic national rugby union team | Selección de rugby de República Checa |
| Czech Silesia | Silesia |
| Czech Social Democratic Party | Partido Socialdemócrata Checo |
| Czech Wikipedia | Wikipedia en checo |
| Czech woman | Idioma checo |
| Czechia | Chequia |
| Czechish | checo |
| Czecho-Slovak | Checoslovaco |
| Czecho-Slovakia | Checoslovaquia |
| Czechoslovak | Checoslovaco |
| Czechoslovak Legions | Legión Checoslovaca |
| Czechoslovak man | Checoslovaco |
| Czechoslovak woman | Checoslovaco |
| Czechoslovakia | Checoslovaquia |
| Czechoslovakia national football team | Selección de fútbol de Checoslovaquia |
| Czechoslovakian | Checoslovaco |
| Czechoslovakian man | Checoslovaco |
| Czechoslovakian Wolfdog | Perro lobo checoslovaco |
| Czechoslovakian woman | Checoslovaco |
| Czesław Miłosz | Czesław Miłosz |
| Czesław Niemen | Czesław Niemen |
| Czochralski process | Proceso Czochralski |
| Częstochowa | Częstochowa |
| Càrcer | Cárcer |
| Cáceres | Provincia de Cáceres |
| Cádiz | Cádiz |
| Cádiz CF | Cádiz Club de Fútbol |
| Cádiz Cortes | Cortes de Cádiz |
| Cáhita | Etnias tara-cahitas |
