| castor | castor |
| Castor and Pollux | Castor e Pólux |
| castor oil | óleo de rícino |
| castor oil plant | mamoneiro |
| Castoridae | Castor |
| castorle | rícino |
| Castorocauda lutrasimilis | Castorocauda |
| Castoroides | Castor-gigante |
| castrate | castrar |
| castrated | castrado |
| castration | castração |
| Castrelo do Val | Castrelo do Val |
| Castries | Castries |
| Castries Quarter | Castries |
| Castrisch | Castrisch |
| Castro Alves | Castro Alves |
| Castro culture | Cultura castreja |
| Castro de Rei | Castro de Rei |
| Castro Urdiales | Castro-Urdiales |
| Castrovirreyna Province | Província de Castrovirreyna |
| casual | casual |
| Casual conversation | Bengala |
| casual labor | trabalho temporário |
| casualties | perdas (em guerra ou acidente) |
| Casualties of War | Casualties of War |
| casualtiessilver-plate | baixas |
| casualty | morte |
| casualty yardnunciamentoublicity | pronto socorro |
| Casuarinaceae | Casuarinaceae |
| casuist | casuísta |
| casuistry | casuística |
| Casus belli | Casus belli |
| cat | gato |
| Cat Ballou | Cat Ballou |
| cat box | caixa do gato |
| cat food | comida |
| Cat Island | Cat Island |
| cat jelly | gatoa |
| Cat on a Hot Tin Roof | Cat on a Hot Tin Roof |
| Cat People | Cat People |
| Cat Power | Chan Marshall |
| Cat Soup | Cat Soup |
| Cat Stevens | Yusuf Islam |
| cat's box | caixa do gato |
| cat-o'-nine-tails | chicote |
| catabolism | catabolismo |
| Catacaos District | Catacaos |
| cataclysm | desastre |
| cataclysmic | devastador |
| catacomb | catacumba |
| Catacombs of Rome | Catacumba romana |
| Catalan | catalão |
| Catalan Countries | Países Catalães |
| Catalan language | Língua catalã |
| Catalan motorcycle Grand Prix | Grande Prêmio da Catalunha de MotoGP |
| Catalan nationalism | Nacionalismo catalão |
| Catalan Opening | Abertura Catalã |
| Catalan people | Catalães |
| Catalan Revolt | Guerra dos Segadores |
| Catalan Sheepdog | Pastor Catalão |
| Catalan solid | Sólidos de Catalan |
| catalepsy | catalepsia |
| cataleptic | cataléptico |
| Catalina | Catalina |
| Catalina Cruz | Catalina Cruz |
| catalog | catálogo |
| cataloging | listagem |
