There are 17 words that start with 'modula'.
| modular | modulars | 
| modulate | modularly | 
| modulated | modulates | 
| modulator | modularity | 
| modulating | modulation | 
| modulators | modulatory | 
| modularized | modulations | 
| modulability | modularities | 
| modulabilities | |
Note: These 17 words that start with 'modula' are found from the USA & Canada version of the tournament Scrabble word list.