There are 400 11-letter words that end with 'ions'.
Note: These 400 11-letter words that end with 'ions' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with tions, sions, lions, nions, rions, xions, hions, pions, gions, cions, vions, mions, bions, dions, eions, zions.
5-letter words end with 'ions' (3)