There are 11 12-letter words that end with 'xes'.
| anticlimaxes | chatterboxes | circumflexes |
| googolplexes | mesothoraxes | metathoraxes |
| morphallaxes | inheritrixes | oropharynxes |
| superhelixes | trophallaxes | |
Note: These 11 12-letter words that end with 'xes' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with axes, exes, oxes, ixes, nxes, uxes, yxes, lxes.
4-letter words end with 'xes' (3)