There are 5 4-letter words that start with 'au'.
| auto | auks | auld | aunt | aura |
Note: These 5 4-letter words that start with 'au' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with aut, aud, aur, aus, aug, aub, aux, aun, auc, auk, aul.
3-letter words start with 'au' (1)