There are 474 words that start with 'rea'.
Note: These 474 words that start with 'rea' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with reac, reas, read, real, reap, rear, reat, rean, reaf, reav, reag, reaw, ream, reau, reab.
4-letter words start with 'rea' (5)