7 letter words:
befleck18,
5 letter words:
fleck14,
flock14,
block13,
bloke11,
cleek11,
celeb9,
coble9,
4 letter words:
feck13,
beck12,
bock12,
folk11,
keef11,
coke10,
lock10,
beef9,
clef9,
feeb9,
floc9,
bloc8,
keel8,
koel8,
leek8,
leke8,
feel7,
flee7,
floe7,
bole6,
cole6,
lobe6,
3 letter words:
kef10,
kob9,
fob8,
cob7,
eek7,
eke7,
elk7,
lek7,
oke7,
elf6,
fee6,
foe6,
bee5,
bel5,
cee5,
cel5,
col5,
lob5,
obe5,
eel3,
lee3,
ole3,
2 letter words:
ef5,
fe5,
of5,
be4,
bo4,
el2,
lo2,
oe2,