There are 5 5-letter words that start with 'rad'.
radar | radii | radio | radix | radon |
Note: These 5 5-letter words that start with 'rad' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with radi, radd, rada, rado, radu, radw, rads.
4-letter words start with 'rad' (1)