6 letter words:
robots8,
rotors6,
5 letter words:
boors7,
boost7,
boots7,
borts7,
botts7,
broos7,
robot7,
sorbo7,
ottos5,
roost5,
roots5,
rorts5,
rotor5,
rotos5,
stoor5,
toots5,
toros5,
torot5,
torrs5,
torso5,
torts5,
trots5,
4 letter words:
boor6,
boos6,
boot6,
bors6,
bort6,
bots6,
bott6,
broo6,
bros6,
obos6,
orbs6,
robs6,
sorb6,
stob6,
oots4,
orts4,
otto4,
roos4,
root4,
rort4,
rost4,
roto4,
rots4,
soot4,
sort4,
stot4,
toot4,
toro4,
torr4,
tors4,
tort4,
tost4,
tots4,
trot4,
3 letter words:
boo5,
bor5,
bos5,
bot5,
bro5,
brr5,
obo5,
obs5,
orb5,
rob5,
sob5,
oor3,
oos3,
oot3,
ors3,
ort3,
roo3,
rot3,
sot3,
too3,
tor3,
tot3,
2 letter words:
bo4,
ob4,
oo2,
or2,
os2,
so2,
st2,
to2,