There are 14 words that start with 'tortu'.
| torture | tortuous |
| tortured | torturer |
| tortures | torturers |
| torturing | torturous |
| tortuosity | tortuously |
| torturously | tortuosities |
| tortuousness | tortuousnesses |
Note: These 14 words that start with 'tortu' are found from the USA & Canada version of the tournament Scrabble word list.