There are 23 6-letter words that start with 'san'.
| sancta | sandal | sanded | sander | sandhi | 
| sanely | sanest | sangar | sangas | sanger | 
| sanghs | sanies | saning | sanity | sanjak | 
| sannop | sannup | sansar | sansei | santir | 
| santol | santos | santur | ||
Note: These 23 6-letter words that start with 'san' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with sand, sani, sant, sang, sanc, sans, sane, sann, sana, sanb, sanj, sank.
4-letter words start with 'san' (5)