7 letter words:
opinion9,
6 letter words:
napkin12,
panini8,
panino8,
pinion8,
5 letter words:
okapi11,
pinko11,
kinin9,
piano7,
pinna7,
pinon7,
anion5,
inion5,
onion5,
4 letter words:
knap10,
knop10,
paik10,
pika10,
piki10,
pink10,
akin8,
ikon8,
kain8,
kaon8,
kina8,
kino8,
koan8,
nook8,
oink8,
nipa6,
pain6,
pian6,
pina6,
pion6,
poon6,
anon4,
inia4,
naoi4,
nona4,
noon4,
3 letter words:
kip9,
kop9,
ink7,
kin7,
koa7,
koi7,
oak7,
oka7,
apo5,
nap5,
nip5,
pan5,
pia5,
pin5,
poi5,
poo5,
ain3,
ani3,
inn3,
ion3,
nan3,
noo3,
ono3,
2 letter words:
ka6,
ki6,
op4,
pa4,
pi4,
ai2,
an2,
in2,
na2,
no2,
oi2,
on2,