There are 32 7-letter words that start with 'blo'.
Note: These 32 7-letter words that start with 'blo' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with bloo, blow, bloc, blot, blon, blou, bloa, blog, blov, blos, blob, blok.
4-letter words start with 'blo' (5)