There are 12 words that start with 'repul'.
| repulse | repulsed | 
| repulser | repulses | 
| repulsers | repulsing | 
| repulsion | repulsive | 
| repulsions | repulsively | 
| repulsiveness | repulsivenesses | 
Note: These 12 words that start with 'repul' are found from the USA & Canada version of the tournament Scrabble word list.