6 letter words:
refuge10,
5 letter words:
forge9,
fugue9,
gofer9,
erugo6,
rogue6,
rouge6,
4 letter words:
frog8,
frug8,
fugu8,
fere7,
fore7,
four7,
free7,
froe7,
reef7,
eger5,
ergo5,
goer5,
gore5,
gree5,
grue5,
guru5,
ogee5,
ogre5,
urge5,
euro4,
roue4,
3 letter words:
fog7,
fug7,
fee6,
fer6,
feu6,
foe6,
for6,
fou6,
fro6,
fur6,
ref6,
ego4,
erg4,
gee4,
gor4,
reg4,
rug4,
ere3,
ore3,
our3,
ree3,
roe3,
rue3,
2 letter words:
ef5,
fe5,
of5,
go3,
er2,
oe2,
or2,
re2,