6 letter words:
pooris8,
5 letter words:
prows10,
swoop10,
woops10,
poori7,
proso7,
roops7,
sopor7,
spoor7,
4 letter words:
wows10,
pows9,
prow9,
sowp9,
swop9,
wisp9,
wops9,
iwis7,
rows7,
woos7,
oops6,
pirs6,
piso6,
pois6,
poor6,
poos6,
proo6,
pros6,
rips6,
risp6,
roop6,
soop6,
iris4,
roos4,
siri4,
sori4,
3 letter words:
wow9,
pow8,
wop8,
iwi6,
row6,
sow6,
wis6,
woo6,
wos6,
oop5,
ops5,
pir5,
pis5,
poi5,
poo5,
pos5,
pro5,
psi5,
rip5,
sip5,
sop5,
ios3,
iso3,
oor3,
oos3,
ors3,
roo3,
sir3,
sri3,
2 letter words:
ow5,
wo5,
op4,
pi4,
po4,
io2,
is2,
oi2,
oo2,
or2,
os2,
si2,
so2,