There are 536 9-letter words that start with 'di'.
Note: These 536 9-letter words that start with 'di' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with dis, dia, div, dic, dip, dig, din, dil, dim, dir, dif, die, dio, dit, did, dib, diz, dik, diu, dih, diq, diw, dix.
3-letter words start with 'di' (10)