There are 9 15-letter words that start with 'rei'.
| reimplantations | reincorporating |
| reincorporation | reindustrialize |
| reinstallations | reintroductions |
| reinvestigating | reinvestigation |
| reinvigorations | |
Note: These 9 15-letter words that start with 'rei' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with rein, reim, reif, reig, reit, reis, reiv, reid, reic.
4-letter words start with 'rei' (3)