6 letter words:
rubout8,
turbot8,
5 letter words:
butut7,
turbo7,
trout5,
tutor5,
4 letter words:
bowr9,
brow9,
rowt7,
towt7,
trow7,
wort7,
bort6,
bott6,
bout6,
brut6,
butt6,
rout4,
tort4,
tour4,
tout4,
trot4,
tutu4,
3 letter words:
bow8,
owt6,
row6,
tow6,
two6,
wot6,
bor5,
bot5,
bro5,
bru5,
bur5,
but5,
orb5,
rob5,
rub5,
tub5,
urb5,
ort3,
our3,
out3,
rot3,
rut3,
tor3,
tot3,
tut3,
utu3,
2 letter words:
ow5,
wo5,
bo4,
ob4,
or2,
ou2,
to2,
ur2,
ut2,