9 letter words:
orpharion14,
7 letter words:
harpoon12,
pronaoi9,
orarion7,
6 letter words:
harpin11,
inhoop11,
orphan11,
porina8,
5 letter words:
phono10,
honor8,
rhino8,
apron7,
napoo7,
orpin7,
piano7,
poori7,
porno7,
prion7,
prior7,
proin7,
noria5,
4 letter words:
harp9,
hoop9,
opah9,
phon9,
pooh9,
hain7,
hair7,
harn7,
haro7,
hoar7,
hoon7,
hora7,
hori7,
horn7,
noah7,
ohia7,
nipa6,
noop6,
pain6,
pair6,
parr6,
pian6,
pina6,
pion6,
pirn6,
poon6,
poor6,
porn6,
prao6,
proa6,
proo6,
roop6,
airn4,
inro4,
iron4,
naoi4,
noir4,
nori4,
orra4,
rain4,
rani4,
roan4,
roar4,
roin4,
roon4,
3 letter words:
hap8,
hip8,
hop8,
pah8,
phi8,
pho8,
poh8,
ahi6,
han6,
hao6,
hin6,
hoa6,
hoi6,
hon6,
hoo6,
nah6,
noh6,
oho6,
ooh6,
rah6,
rho6,
apo5,
nap5,
nip5,
oop5,
pan5,
par5,
pia5,
pin5,
pir5,
poa5,
poi5,
poo5,
pro5,
rap5,
rip5,
ain3,
air3,
ani3,
ion3,
noo3,
nor3,
oar3,
ono3,
oon3,
oor3,
ora3,
rai3,
ran3,
ria3,
rin3,
roo3,
2 letter words:
ah5,
ha5,
hi5,
ho5,
oh5,
op4,
pa4,
pi4,
po4,
ai2,
an2,
ar2,
in2,
io2,
na2,
no2,
oi2,
on2,
oo2,
or2,