9 letter words:
politburo13,
7 letter words:
potboil11,
6 letter words:
probit10,
upboil10,
brulot8,
loupit8,
roopit8,
roupit8,
uproot8,
loriot6,
toruli6,
5 letter words:
bloop9,
bitou7,
blurt7,
boult7,
broil7,
brool7,
bruit7,
built7,
buroo7,
oboli7,
oobit7,
orbit7,
orlop7,
oubit7,
pilot7,
poilu7,
polio7,
poori7,
poort7,
poult7,
proul7,
robot7,
topoi7,
troop7,
tulip7,
turbo7,
uplit7,
lirot5,
outro5,
triol5,
4 letter words:
blip8,
burp8,
prob8,
birl6,
biro6,
bito6,
blot6,
blur6,
boil6,
bolo6,
bolt6,
bool6,
boor6,
boot6,
bort6,
bout6,
brio6,
brit6,
broo6,
brut6,
burl6,
lipo6,
lobi6,
lobo6,
loop6,
loup6,
obit6,
obol6,
pirl6,
plot6,
polo6,
polt6,
pool6,
poor6,
poot6,
port6,
pour6,
pout6,
proo6,
ptui6,
puir6,
puli6,
puri6,
purl6,
ript6,
roop6,
roup6,
topi6,
topo6,
trip6,
trop6,
litu4,
loir4,
loor4,
loot4,
loti4,
loto4,
lour4,
lout4,
luit4,
olio4,
riot4,
roil4,
root4,
roti4,
rotl4,
roto4,
roul4,
rout4,
tirl4,
tiro4,
toil4,
tolu4,
tool4,
tori4,
toro4,
tour4,
trio4,
3 letter words:
bop7,
pub7,
bio5,
bit5,
boi5,
boo5,
bor5,
bot5,
bro5,
bru5,
bur5,
but5,
lib5,
lip5,
lob5,
lop5,
obi5,
obo5,
oop5,
opt5,
orb5,
oup5,
pir5,
pit5,
piu5,
plu5,
poi5,
pol5,
poo5,
pot5,
pro5,
pul5,
pur5,
put5,
rib5,
rip5,
rob5,
rub5,
tip5,
top5,
tub5,
tup5,
upo5,
urb5,
urp5,
lit3,
loo3,
lor3,
lot3,
lou3,
lur3,
oil3,
oor3,
oot3,
ort3,
our3,
out3,
rit3,
roo3,
rot3,
rut3,
til3,
too3,
tor3,
tui3,
2 letter words:
bi4,
bo4,
ob4,
op4,
pi4,
po4,
up4,
io2,
it2,
li2,
lo2,
oi2,
oo2,
or2,
ou2,
ti2,
to2,
ur2,
ut2,