There are 4 12-letter words that end with 'ails'.
| bristletails | countervails | scissortails |
| swallowtails | ||
Note: These 4 12-letter words that end with 'ails' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with tails, sails, rails, nails, mails, vails, wails, pails, bails, fails, gails, hails, jails, kails, lails, uails, zails.
5-letter words end with 'ails' (13)