5 letter words:
kimbo13,
kombu13,
krubi11,
rumbo9,
timbo9,
bitou7,
bruit7,
murti7,
orbit7,
oubit7,
tumor7,
turbo7,
4 letter words:
birk10,
bork10,
bouk10,
brik10,
buik10,
burk10,
mirk10,
moki10,
murk10,
borm8,
brim8,
koru8,
kuri8,
kuti8,
ombu8,
tomb8,
touk8,
turk8,
umbo8,
biro6,
bito6,
bort6,
bout6,
brio6,
brit6,
brut6,
miro6,
moit6,
mort6,
moti6,
motu6,
muir6,
muti6,
obit6,
omit6,
rimu6,
roum6,
trim6,
turm6,
riot4,
roti4,
rout4,
tiro4,
tori4,
tour4,
trio4,
3 letter words:
bok9,
kob9,
bum7,
irk7,
kir7,
kit7,
koi7,
kor7,
mib7,
mob7,
oik7,
ouk7,
rok7,
bio5,
bit5,
boi5,
bor5,
bot5,
bro5,
bru5,
bur5,
but5,
mir5,
moi5,
mor5,
mot5,
mou5,
mut5,
obi5,
orb5,
rib5,
rim5,
rob5,
rom5,
rub5,
rum5,
tom5,
tub5,
tum5,
urb5,
ort3,
our3,
out3,
rit3,
rot3,
rut3,
tor3,
tui3,
2 letter words:
ki6,
ko6,
bi4,
bo4,
mi4,
mo4,
mu4,
ob4,
om4,
um4,
io2,
it2,
oi2,
or2,
ou2,
ti2,
to2,
ur2,
ut2,