5 letter words:
boult7,
4 letter words:
boko10,
book10,
bouk10,
bulk10,
kobo10,
kolo8,
koto8,
look8,
oulk8,
toko8,
took8,
touk8,
blot6,
bolo6,
bolt6,
bool6,
boot6,
bout6,
lobo6,
obol6,
loot4,
loto4,
lout4,
tolu4,
tool4,
3 letter words:
bok9,
kob9,
ouk7,
boo5,
bot5,
but5,
lob5,
obo5,
tub5,
loo3,
lot3,
lou3,
oot3,
out3,
too3,
2 letter words:
ko6,
bo4,
ob4,
lo2,
oo2,
ou2,
to2,
ut2,