| catapora | chickenpox |
| cataporae | blister |
| catapulta | catapult |
| catapultagem | catapulting |
| catar | pick up |
| catar (arroz etc) | catastrophe |
| catar coisas no lixo | scavenge |
| catarata | chute |
| Cataratas Americanas | American Falls |
| Cataratas Canadenses | Horseshoe Falls |
| Cataratas de Montmorency | Montmorency Falls |
| Cataratas de Reichenbach | Reichenbach Falls |
| Cataratas do Anjo | Angel Falls |
| Cataratas do Iguaçu | Iguazu Falls |
| Cataratas do Niágara | Niagara Falls |
| Cataratas do Tugela | Tugela Falls |
| Catarina | Catherine |
| Catarina de Aragão | Catherine of Aragon |
| Catarina de Bolonha | Catherine of Bologna |
| Catarina de Lencastre | Katherine of Lancaster |
| Catarina de Siena | Catherine of Siena |
| Catarina de Valois | Catherine of Valois |
| Catarina de Áustria | Catarina of Spain |
| Catarina Howard | Catherine Howard |
| Catarina I da Rússia | Catherine I of Russia |
| Catarina Micaela de Espanha | Catherine Michelle of Spain |
| Catarina Parr | Catherine Parr |
| Catarina Sunnesdotter da Suécia | Catherine of Ymseborg |
| Catarina von Bora | Katharina Luther |
| Catarismo | Catharism |
| catarral | catarrhal |
| Catarrhini | Catarrhini |
| catarro | catarrh |
| catarrofe | catastrophe |
| catarse | catharsis |
| Catasetum | Catasetum |
| catastroficamente | catastrophically |
| Catastrofismo | Catastrophism |
| catastrófico | devastating |
| catatau | boy |
| catatonia | catatonia |
| catatónico | catatonic |
| catatônico | catatonic |
| Catawbas | Catawba |
| Cataúba | Vitis labrusca |
| Catch a Fire | Catch a Fire |
| Catch Me If You Can | Catch Me if You Can |
| Catching Up With Depeche Mode | Catching Up with Depeche Mode |
| catchup | ketchup |
| Catchupe | Ketchup |
| CatDog | CatDog |
| Cate Blanchett | Cate Blanchett |
| catecismo | catechism |
| Catecismo da Igreja Católica | Catechism of the Catholic Church |
| Catecol | Pyrocatechol |
| catecúmeno | catechumen |
| Catedrais de Espanha | Cathedrals in Spain |
| catedral | cathedral |
