6 letter words:
orphan11,
5 letter words:
apron7,
4 letter words:
harp9,
opah9,
phon9,
harn7,
haro7,
hoar7,
hora7,
horn7,
noah7,
porn6,
prao6,
proa6,
roan4,
3 letter words:
hap8,
hop8,
pah8,
pho8,
poh8,
han6,
hao6,
hoa6,
hon6,
nah6,
noh6,
rah6,
rho6,
apo5,
nap5,
pan5,
par5,
poa5,
pro5,
rap5,
nor3,
oar3,
ora3,
ran3,
2 letter words:
ah5,
ha5,
ho5,
oh5,
op4,
pa4,
po4,
an2,
ar2,
na2,
no2,
on2,
or2,