7 letter words:
bourbon11,
6 letter words:
booner8,
bourne8,
unbore8,
unrobe8,
5 letter words:
berob9,
boner7,
borne7,
boron7,
bourn7,
buroo7,
roneo5,
rouen5,
4 letter words:
boob8,
bubo8,
burb8,
bone6,
boon6,
boor6,
bore6,
born6,
boun6,
bren6,
broo6,
burn6,
ebon6,
oboe6,
robe6,
rube6,
unbe6,
euro4,
oner4,
ourn4,
rone4,
roon4,
roue4,
rune4,
3 letter words:
bob7,
bub7,
ebb7,
ben5,
bon5,
boo5,
bor5,
bro5,
bru5,
bun5,
bur5,
neb5,
nob5,
nub5,
obe5,
obo5,
orb5,
reb5,
rob5,
rub5,
urb5,
eon3,
ern3,
noo3,
nor3,
nur3,
one3,
ono3,
oon3,
oor3,
ore3,
our3,
ren3,
reo3,
roe3,
roo3,
rue3,
run3,
ure3,
urn3,
2 letter words:
be4,
bo4,
ob4,
en2,
er2,
ne2,
no2,
nu2,
oe2,
on2,
oo2,
or2,
ou2,
re2,
un2,
ur2,