7 letter words:
hairpin12,
6 letter words:
harpin11,
orphan11,
rapini8,
5 letter words:
rhino8,
apron7,
orpin7,
piano7,
prion7,
noria5,
4 letter words:
harp9,
opah9,
phon9,
hair7,
hoar7,
hora7,
horn7,
ohia7,
nipa6,
pain6,
pair6,
pian6,
pina6,
pion6,
pirn6,
porn6,
prao6,
proa6,
airn4,
inia4,
inro4,
iron4,
naoi4,
noir4,
nori4,
rain4,
rani4,
roan4,
3 letter words:
hap8,
hip8,
hop8,
pah8,
phi8,
poh8,
ahi6,
hao6,
hin6,
hon6,
nah6,
noh6,
rah6,
rho6,
apo5,
nap5,
nip5,
pan5,
par5,
pia5,
pin5,
poi5,
pro5,
rap5,
rip5,
ain3,
air3,
ani3,
ion3,
nor3,
oar3,
ora3,
rai3,
ran3,
ria3,
rin3,
2 letter words:
ah5,
ha5,
hi5,
ho5,
oh5,
op4,
pa4,
pi4,
ai2,
an2,
ar2,
in2,
na2,
no2,
oi2,
on2,
or2,