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.