4 letter words:
pows9,
swop9,
wisp9,
wops9,
swig8,
wigs8,
wogs8,
gips7,
pigs7,
piso6,
pois6,
3 letter words:
pow8,
wop8,
wig7,
wog7,
gip6,
pig6,
sow6,
wis6,
wos6,
ops5,
pis5,
poi5,
psi5,
sip5,
sop5,
gos4,
2 letter words:
ow5,
wo5,
op4,
pi4,
go3,
is2,
oi2,
os2,
si2,
so2,