There are 15 6-letter words that start with 'cau'.
| caucus | caudad | caudal | caudex | caudle |
| caught | caulds | caules | caulis | caulks |
| causal | caused | causer | causes | causey |
Note: These 15 6-letter words that start with 'cau' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with caus, caul, caut, caud, cauc, caug.
4-letter words start with 'cau' (1)