There are 4 12-letter words that end with 'x'.
heteroduplex | hypercomplex | pneumothorax |
portmanteaux | ||
Note: These 4 12-letter words that end with 'x' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with ex, ox, ix, ax, ux, nx, yx, lx.
2-letter words end with 'x' (3)