There are 15 words that end with 'reas'.
| areas | ureas |
| boreas | choreas |
| spireas | whereas |
| gastreas | pancreas |
| subareas | thioureas |
| centaureas | hydroxyureas |
| sulfonylureas | hepatopancreas |
| phenylthioureas | |
Note: These 15 words that end with 'reas' are found from the USA & Canada version of the tournament Scrabble word list.