| Castelo Branco | Castelo Branco |
| Castelo Branco cheese | Castelo Branco |
| Castelsarrasin | Castelsarrasin |
| Castelvetrano | Castelvetrano |
| Castelvittorio | Castelvittorio |
| caster | rolletje |
| Casti-Wergenstein | Casti-Wergenstein |
| Castiel | Castiel |
| castigate | kastijden |
| castigation | kastijding |
| Castiglioncello | Castiglioncello |
| Castile | Castillië |
| Castile and León | Kastilië en León |
| Castile-La Mancha | Kastilië-La Mancha |
| Castilian | Spaans |
| Castilian War of the Communities | Opstand van de comunidades |
| Castilla | Kastilië |
| Castilla-La Mancha | Kastilië-La Mancha |
| Castillian | Castilliaans |
| casting | gieten |
| Castinus | Flavius Castinus |
| castle | fort |
| Castle Clinton | Castle Clinton National Monument |
| Castle Geyser | Kasteelgeiser |
| castle in the air | luchtkasteel |
| Castle of Beersel | Kasteel van Beersel |
| Castle of Belœil | Kasteel van Beloeil |
| Castle of Bouillon | Kasteel van Bouillon |
| Castle of Diósgyőr | Forint |
| Castle of Gaasbeek | Kasteel van Gaasbeek |
| Castle of Good Hope | Kasteel van Goede Hoop |
| Castle of Rumbeke | Kasteel van Rumbeke |
| Castle of São Jorge | Castelo de São Jorge |
| Castle of Wijnendale | Kasteel van Wijnendale |
| Castle Stalker | Stalker |
| Castlebar | Castlebar |
| castling | rokade |
| castor | rolletje |
| Castor and Pollux | Castor en Pollux |
| castor oil | castorolie |
| Castoridae | Beverachtigen |
| Castorimorpha | Castorimorpha |
| Castorocauda lutrasimilis | Castorocauda |
| Castoroides | Castoroides |
| Castoroil | Wonderolie |
| Castra | Castra |
| Castra Praetoria | Castra Praetoria |
| castrate | steriliseren |
| castration | castratie |
| castrato | gecastreerd |
| Castrelo do Val | Castrelo do Val |
