7 letter words:
refugee11,
6 letter words:
refuge10,
feutre9,
refute9,
greete7,
5 letter words:
grufe9,
freet8,
terfe8,
egret6,
greet6,
4 letter words:
frug8,
feer7,
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
terf7,
tref7,
turf7,
eger5,
euge5,
gere5,
gert5,
gree5,
grue5,
tegu5,
trug5,
urge5,
rete4,
teer4,
tree4,
true4,
3 letter words:
feg7,
fug7,
eft6,
erf6,
fee6,
fer6,
fet6,
feu6,
fur6,
ref6,
tef6,
erg4,
gee4,
get4,
gue4,
gur4,
gut4,
reg4,
rug4,
teg4,
tug4,
ere3,
ree3,
ret3,
rue3,
rut3,
tee3,
ure3,
ute3,
2 letter words:
ef5,
fe5,
gu3,
ug3,
ee2,
er2,
et2,
re2,
te2,
ur2,
ut2,