There are 13 words that start with 'dipt'.
| dipt | diptera | diptyca | 
| diptych | dipteral | dipteran | 
| dipteron | diptycas | diptychs | 
| dipterans | dipterous | dipterocarp | 
| dipterocarps | ||
Note: These 13 words that start with 'dipt' are found from the USA & Canada version of the tournament Scrabble word list.