There are 18 words that start with 'wau'.
| wauk | waul | waur |
| waugh | wauks | wauls |
| waucht | waught | wauked |
| wauled | wauchts | waughts |
| wauking | wauling | wauchted |
| waughted | wauchting | waughting |
Note: These 18 words that start with 'wau' are found from the USA & Canada version of the tournament Scrabble word list.