There are 26 6-letter words that start with 'cas'.
| casaba | casava | casbah | casefy | caseic |
| casein | casern | cashaw | cashed | cashes |
| cashew | cashoo | casing | casini | casino |
| casita | casked | casket | casque | cassia |
| cassis | caster | castes | castle | castor |
| casual | ||||
Note: These 26 6-letter words that start with 'cas' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with cast, case, cass, cash, casu, casc, casi, cask, casa, casq, casb.
4-letter words start with 'cas' (5)