There is 1 13-letter word that start with 'cas'.
castabilities | |
Note: These 1 13-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)