6 letter words:
ferret9,
revert9,
5 letter words:
fever11,
fewer11,
evert8,
freer8,
frere8,
refer8,
revet8,
rewet8,
4 letter words:
weft10,
ever7,
ewer7,
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
tref7,
twee7,
veer7,
vert7,
weer7,
weet7,
were7,
wert7,
rete4,
tree4,
3 letter words:
few9,
eft6,
eve6,
ewe6,
fee6,
fer6,
fet6,
ref6,
rev6,
tew6,
vee6,
vet6,
wee6,
wet6,
ere3,
err3,
ree3,
ret3,
tee3,
2 letter words:
ef5,
fe5,
we5,
er2,
et2,
re2,