There are 11 7-letter words that start with 'ef'.
| effable | effaced | effacer | effaces |
| effects | effendi | efforts | effulge |
| effused | effuses | eftsoon | |
Note: These 11 7-letter words that start with 'ef' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with eff, eft, efs.
3-letter words start with 'ef' (3)