There are 22 words that end with 'ua'.
| qua | aqua | skua |
| lehua | genua | tegua |
| vacua | cornua | mantua |
| lingua | decidua | majagua |
| piragua | siliqua | residua |
| continua | menstrua | tamandua |
| gargantua | putonghua | chautauqua |
| ultravacua | ||
Note: These 22 words that end with 'ua' are found from the USA & Canada version of the tournament Scrabble word list.