There are 18 words that end with 'tyls'.
| butyls | octyls |
| acetyls | dactyls |
| pentyls | protyls |
| trotyls | dicotyls |
| biacetyls | diacetyls |
| epicotyls | isobutyls |
| hypocotyls | monocotyls |
| syndactyls | artiodactyls |
| pterodactyls | perissodactyls |
Note: These 18 words that end with 'tyls' are found from the USA & Canada version of the tournament Scrabble word list.