There are 3 4-letter words that start with 'def'.
defi | deft | defy | ||
Note: These 3 4-letter words that start with 'def' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with defe, defi, defo, defl, defa, defr, defu, deft, deff, defy.
4-letter words start with 'def' (3)