6 letter words:
prefer11,
unfree9,
pruner8,
5 letter words:
furze17,
fuzee17,
freer8,
frere8,
refer8,
preen7,
prune7,
puree7,
purer7,
rupee7,
enure5,
rerun5,
4 letter words:
fuze16,
prez15,
enuf7,
fere7,
fern7,
free7,
reef7,
neep6,
peen6,
peer6,
pere6,
pree6,
pure6,
purr6,
erne4,
ruer4,
rune4,
3 letter words:
fez15,
zep14,
zee12,
fee6,
fen6,
fer6,
feu6,
fun6,
fur6,
ref6,
pee5,
pen5,
per5,
pun5,
pur5,
rep5,
urp5,
ere3,
ern3,
err3,
nee3,
ree3,
rue3,
run3,
urn3,
2 letter words:
ef5,
fe5,
pe4,
up4,
en2,
er2,
ne2,
nu2,
re2,
un2,