There are 42 7-letter words that start with 'hy'.
Note: These 42 7-letter words that start with 'hy' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with hyp, hyd, hym, hyg, hyb, hya, hys, hyl, hyo, hye, hyr, hyi, hyt.
3-letter words start with 'hy' (1)