There are 13 words that start with 'studi'.
| studio | studied | 
| studier | studies | 
| studios | studiers | 
| studious | studiedly | 
| studiously | studiedness | 
| studiousness | studiednesses | 
| studiousnesses | |
Note: These 13 words that start with 'studi' are found from the USA & Canada version of the tournament Scrabble word list.