There are 11 words that end with 'mator'.
| animator | cremator | 
| decimator | estimator | 
| collimator | lacrimator | 
| amalgamator | consummator | 
| legitimator | lachrymator | 
| monochromator | |
Note: These 11 words that end with 'mator' are found from the USA & Canada version of the tournament Scrabble word list.