9 letter words:
fullerene12,
7 letter words:
fueller10,
6 letter words:
enfree9,
feeler9,
feller9,
ferule9,
fueler9,
fuller9,
refeel9,
refell9,
refuel9,
unfree9,
ruelle6,
unreel6,
5 letter words:
fleer8,
refel8,
enure5,
neele5,
4 letter words:
enuf7,
feel7,
feen7,
feer7,
fell7,
fere7,
fern7,
flee7,
flue7,
free7,
fuel7,
full7,
furl7,
reef7,
erne4,
leer4,
lere4,
lune4,
lure4,
null4,
nurl4,
reel4,
reen4,
rule4,
rune4,
3 letter words:
elf6,
erf6,
fee6,
fen6,
fer6,
feu6,
flu6,
fun6,
fur6,
nef6,
ref6,
eel3,
een3,
ell3,
ene3,
ere3,
ern3,
lee3,
leu3,
lur3,
nee3,
nur3,
ree3,
ren3,
rue3,
run3,
ule3,
ure3,
urn3,
2 letter words:
ef5,
fe5,
ee2,
el2,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,
