There are 9 words that start with 'stridu'.
| stridulate | stridulous | 
| stridulated | stridulates | 
| stridulating | stridulation | 
| stridulatory | stridulously | 
| stridulations | |
Note: These 9 words that start with 'stridu' are found from the USA & Canada version of the tournament Scrabble word list.