6 letter words:
posits8,
ptosis8,
spoots8,
stoops8,
5 letter words:
pisos7,
poots7,
posit7,
posts7,
soops7,
spits7,
spoot7,
spots7,
stoop7,
stops7,
topis7,
topoi7,
topos7,
soots5,
4 letter words:
oops6,
opts6,
piso6,
piss6,
pits6,
pois6,
poos6,
poot6,
poss6,
post6,
pots6,
psis6,
psst6,
sips6,
soop6,
sops6,
spit6,
spot6,
stop6,
tips6,
topi6,
topo6,
tops6,
isos4,
oots4,
sist4,
sits4,
soot4,
sots4,
toss4,
3 letter words:
oop5,
ops5,
opt5,
pis5,
pit5,
poi5,
poo5,
pos5,
pot5,
psi5,
pst5,
sip5,
sop5,
tip5,
top5,
ios3,
iso3,
its3,
oos3,
oot3,
sis3,
sit3,
sos3,
sot3,
tis3,
too3,
2 letter words:
op4,
pi4,
po4,
io2,
is2,
it2,
oi2,
oo2,
os2,
si2,
so2,
st2,
ti2,
to2,