There are 454 words that start with 'red'.
Note: These 454 words that start with 'red' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with rede, redi, redu, redo, redr, reda, redb, redd, reds, redl, redw, redh, redn, redc, redf, redt, redy, redp.
4-letter words start with 'red' (4)