5 letter words:
fillo8,
hillo8,
hullo8,
4 letter words:
houf10,
fill7,
filo7,
foil7,
foul7,
full7,
hili7,
hill7,
hioi7,
hull7,
lilo4,
3 letter words:
foh9,
fil6,
flu6,
fou6,
hoi6,
hui6,
ufo6,
ill3,
lou3,
oil3,
2 letter words:
hi5,
ho5,
if5,
of5,
oh5,
uh5,
io2,
li2,
lo2,
oi2,
ou2,