There are 6 12-letter words that end with 'ires'.
| billionaires | counterfires | doctrinaires |
| millionaires | legionnaires | zillionaires |
Note: These 6 12-letter words that end with 'ires' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with fires, pires, aires, wires, uires, tires, hires, mires, oires, sires, nires, cires, dires, vires.
5-letter words end with 'ires' (8)