4 letter words:
flew10,
enuf7,
fern7,
flue7,
fuel7,
furl7,
wren7,
lune4,
lure4,
nurl4,
rule4,
rune4,
3 letter words:
few9,
elf6,
fen6,
fer6,
feu6,
flu6,
fun6,
fur6,
new6,
ref6,
wen6,
ern3,
leu3,
rue3,
run3,
urn3,
2 letter words:
ef5,
fe5,
we5,
el2,
en2,
er2,
ne2,
nu2,
re2,
un2,