4 letter words:
loop6,
noop6,
plot6,
polo6,
polt6,
pont6,
pool6,
poon6,
poot6,
topo6,
loon4,
loot4,
loto4,
nolo4,
onto4,
oont4,
tool4,
toon4,
3 letter words:
lop5,
oop5,
opt5,
pol5,
poo5,
pot5,
top5,
loo3,
lot3,
noo3,
not3,
ono3,
oon3,
oot3,
ton3,
too3,
2 letter words:
op4,
po4,
lo2,
no2,
on2,
oo2,
to2,