There are 10 words that start with 'reori'.
| reorient | reorients | 
| reoriented | reorientate | 
| reorienting | reorientated | 
| reorientates | reorientating | 
| reorientation | reorientations | 
Note: These 10 words that start with 'reori' are found from the USA & Canada version of the tournament Scrabble word list.