6 letter words:
bistro8,
oboist8,
oobits8,
orbits8,
robots8,
sbirro8,
rotors6,
triors6,
5 letter words:
biros7,
birrs7,
bitos7,
boors7,
boost7,
boots7,
borts7,
brios7,
brits7,
broos7,
obits7,
oobit7,
orbit7,
robot7,
sorbo7,
orris5,
riots5,
roist5,
roost5,
roots5,
rorts5,
rosit5,
rosti5,
rotis5,
rotor5,
rotos5,
stoor5,
tiros5,
tirrs5,
toros5,
torrs5,
torsi5,
torso5,
trior5,
trios5,
trois5,
4 letter words:
bios6,
biro6,
birr6,
bist6,
bito6,
bits6,
bois6,
boor6,
boos6,
boot6,
bors6,
bort6,
bots6,
brio6,
bris6,
brit6,
broo6,
bros6,
obis6,
obit6,
obos6,
orbs6,
ribs6,
robs6,
sorb6,
stob6,
oots4,
orts4,
riot4,
rits4,
roos4,
root4,
rort4,
rost4,
roti4,
roto4,
rots4,
soot4,
sori4,
sort4,
stir4,
tiro4,
tirr4,
tori4,
toro4,
torr4,
tors4,
trio4,
3 letter words:
bio5,
bis5,
bit5,
boi5,
boo5,
bor5,
bos5,
bot5,
bro5,
brr5,
obi5,
obo5,
obs5,
orb5,
rib5,
rob5,
sib5,
sob5,
ios3,
iso3,
its3,
oor3,
oos3,
oot3,
ors3,
ort3,
rit3,
roo3,
rot3,
sir3,
sit3,
sot3,
sri3,
tis3,
too3,
tor3,
2 letter words:
bi4,
bo4,
ob4,
io2,
is2,
it2,
oi2,
oo2,
or2,
os2,
si2,
so2,
st2,
ti2,
to2,