9 letter words:
unhopeful17,
7 letter words:
hopeful15,
6 letter words:
euphon11,
holpen11,
penful11,
phenol11,
loupen8,
5 letter words:
foehn11,
ouphe10,
pheon10,
phone10,
felon8,
foule8,
loupe7,
pelon7,
pleon7,
poule7,
noule5,
4 letter words:
fohn10,
houf10,
flop9,
help9,
holp9,
hope9,
ouph9,
pelf9,
phon9,
pouf9,
enuf7,
floe7,
flue7,
foen7,
fone7,
foul7,
fuel7,
helo7,
hole7,
hone7,
hule7,
lope6,
loup6,
nope6,
noup6,
olpe6,
open6,
peon6,
plue6,
pole6,
pone6,
pule6,
pulu6,
upon6,
enol4,
leno4,
lone4,
loun4,
lune4,
noel4,
nole4,
noul4,
3 letter words:
feh9,
foh9,
fop8,
hep8,
hop8,
hup8,
peh8,
pho8,
poh8,
puh8,
elf6,
fen6,
feu6,
flu6,
foe6,
fon6,
fou6,
fun6,
hen6,
hoe6,
hon6,
hue6,
hun6,
nef6,
noh6,
ufo6,
lep5,
lop5,
nep5,
ope5,
oup5,
pen5,
plu5,
pol5,
pul5,
pun5,
upo5,
eon3,
leu3,
lou3,
ole3,
one3,
ule3,
ulu3,
2 letter words:
ef5,
eh5,
fe5,
he5,
ho5,
of5,
oh5,
uh5,
op4,
pe4,
po4,
up4,
el2,
en2,
lo2,
ne2,
no2,
nu2,
oe2,
on2,
ou2,
un2,