5 letter words:
foehn11,
phone10,
4 letter words:
fohn10,
hope9,
phon9,
hone7,
nope6,
open6,
peon6,
pone6,
3 letter words:
feh9,
foh9,
fop8,
hep8,
hop8,
peh8,
poh8,
fen6,
foe6,
fon6,
hen6,
hoe6,
hon6,
noh6,
ope5,
pen5,
eon3,
one3,
2 letter words:
ef5,
eh5,
fe5,
he5,
ho5,
of5,
oh5,
op4,
pe4,
en2,
ne2,
no2,
oe2,
on2,