There are 4 12-letter words that start with 'dow'.
| downloadable | downshifting | downtrending | 
| downwardness | ||
Note: These 4 12-letter words that start with 'dow' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with down, dowe, dows, dowd, dowi, dowa, dowr.
4-letter words start with 'dow' (2)