5 letter words:
bluff13,
buffi13,
buffo13,
woful11,
4 letter words:
biff12,
boff12,
buff12,
flow10,
fowl10,
luff10,
wolf10,
blow9,
bowl9,
flub9,
filo7,
foil7,
foul7,
boil6,
3 letter words:
iff9,
off9,
bow8,
fib8,
fob8,
fub8,
fil6,
flu6,
fou6,
low6,
owl6,
bio5,
lib5,
lob5,
obi5,
oil3,
2 letter words:
if5,
of5,
ow5,
wo5,
bi4,
bo4,
li2,
lo2,
oi2,