9 letter words:
butterier11,
8 letter words:
bitterer10,
bourtree10,
rebutter10,
troutier8,
7 letter words:
bourree9,
bruiter9,
burette9,
burrito9,
orbiter9,
tribute9,
reroute7,
reutter7,
ruttier7,
torture7,
utterer7,
6 letter words:
better8,
bettor8,
bitter8,
burier8,
butter8,
orbier8,
ourebi8,
rebore8,
rubier8,
turbit8,
turbot8,
retire6,
retore6,
retort6,
rioter6,
ritter6,
rotter6,
router6,
terret6,
territ6,
tourer6,
touter6,
triter6,
turret6,
ureter6,
5 letter words:
beret7,
biter7,
boite7,
borer7,
brier7,
britt7,
bruit7,
brute7,
buret7,
burro7,
buteo7,
butte7,
orbit7,
rebut7,
tribe7,
tuber7,
turbo7,
otter5,
ourie5,
outer5,
outre5,
retie5,
retro5,
rotte5,
route5,
tetri5,
titer5,
titre5,
torte5,
toter5,
trier5,
trite5,
trout5,
truer5,
tutee5,
tutor5,
uteri5,
utter5,
4 letter words:
beer6,
beet6,
bier6,
biro6,
birr6,
bite6,
bitt6,
bore6,
bort6,
bott6,
bout6,
bree6,
brie6,
brio6,
brit6,
brut6,
burr6,
bute6,
butt6,
obit6,
robe6,
rube6,
tube6,
etui4,
euro4,
rete4,
riot4,
rite4,
rote4,
roti4,
roue4,
rout4,
ruer4,
tier4,
tire4,
tiro4,
toit4,
tore4,
tori4,
torr4,
tort4,
tote4,
tour4,
tout4,
tree4,
tret4,
trio4,
trot4,
true4,
3 letter words:
bee5,
bet5,
bio5,
bit5,
bot5,
bro5,
brr5,
bur5,
but5,
obe5,
obi5,
orb5,
reb5,
rib5,
rob5,
rub5,
tub5,
urb5,
ere3,
err3,
ire3,
ore3,
ort3,
our3,
out3,
ree3,
rei3,
ret3,
roe3,
rot3,
rue3,
rut3,
tee3,
tet3,
tie3,
tit3,
toe3,
tor3,
tot3,
tui3,
tut3,
ute3,
2 letter words:
be4,
bi4,
bo4,
er2,
et2,
it2,
oe2,
oi2,
or2,
re2,
ti2,
to2,
ut2,