There are 16 15-letter words that start with 'ge'.
Note: These 16 15-letter words that start with 'ge' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with gen, geo, ger, gel, gem, ges, gee, gea, get, gec, gew, gey, ged, geg, gei, geu.
3-letter words start with 'ge' (7)