5 letter words:
powin10,
4 letter words:
pown9,
wino7,
woon7,
noop6,
pion6,
poon6,
3 letter words:
pow8,
wop8,
now6,
own6,
win6,
won6,
woo6,
nip5,
oop5,
pin5,
poi5,
poo5,
ion3,
noo3,
ono3,
oon3,
2 letter words:
ow5,
wo5,
op4,
pi4,
po4,
in2,
io2,
no2,
oi2,
on2,
oo2,