6 letter words:
powins11,
5 letter words:
powin10,
powns10,
winos8,
opsin7,
pions7,
psion7,
4 letter words:
pown9,
pows9,
sowp9,
swop9,
wisp9,
wops9,
iwis7,
nows7,
owns7,
snow7,
sown7,
wino7,
wins7,
wons7,
nips6,
pins6,
pion6,
piso6,
pois6,
pons6,
snip6,
spin6,
ions4,
nisi4,
3 letter words:
pow8,
wop8,
iwi6,
now6,
own6,
sow6,
win6,
wis6,
won6,
wos6,
nip5,
ops5,
pin5,
pis5,
poi5,
pos5,
psi5,
sip5,
sop5,
ins3,
ion3,
ios3,
iso3,
nis3,
nos3,
ons3,
sin3,
son3,
2 letter words:
ow5,
wo5,
op4,
pi4,
po4,
in2,
io2,
is2,
no2,
oi2,
on2,
os2,
si2,
so2,