There are 4 15-letter words that end with 'ator'.
| circumnavigator | immunomodulator |
| prestidigitator | thermoregulator |
Note: These 4 15-letter words that end with 'ator' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with rator, lator, nator, cator, iator, tator, gator, vator, dator, uator, mator, eator, sator, pator, bator, zator.
5-letter words end with 'ator' (1)