6 letter words:
ferule9,
fueler9,
refuel9,
cerule8,
recule8,
5 letter words:
fleer8,
refel8,
creel7,
cruel7,
lucre7,
ulcer7,
4 letter words:
clef9,
curf9,
feel7,
feer7,
fere7,
flee7,
flue7,
free7,
fuel7,
furl7,
reef7,
cere6,
clue6,
cree6,
crue6,
cure6,
curl6,
ecru6,
luce6,
leer4,
lere4,
lure4,
reel4,
rule4,
3 letter words:
elf6,
erf6,
fee6,
fer6,
feu6,
flu6,
fur6,
ref6,
cee5,
cel5,
cru5,
cue5,
cur5,
ecu5,
rec5,
ruc5,
eel3,
ere3,
lee3,
leu3,
lur3,
ree3,
rue3,
ule3,
ure3,
2 letter words:
ef5,
fe5,
ee2,
el2,
er2,
re2,
ur2,