There are 10 words that start with 'reit'.
| reitbok | reitboks | 
| reiterate | reiterated | 
| reiterates | reiterating | 
| reiteration | reiterative | 
| reiterations | reiteratively | 
Note: These 10 words that start with 'reit' are found from the USA & Canada version of the tournament Scrabble word list.