There are 30 12-letter words that start with 'ret'.
Note: These 30 12-letter words that start with 'ret' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with retr, reti, reta, rete, reto, retu, reth, rety, retc, retw, rets, rett.
4-letter words start with 'ret' (2)