5 letter words:
aboon7,
baron7,
boron7,
4 letter words:
barn6,
boar6,
boon6,
boor6,
bora6,
born6,
bran6,
broo6,
roan4,
3 letter words:
abo5,
arb5,
ban5,
bar5,
boa5,
boo5,
bra5,
bro5,
nab5,
nob5,
oba5,
orb5,
rob5,
noo3,
nor3,
oar3,
ono3,
ora3,
ran3,
2 letter words:
ab4,
ba4,
bo4,
an2,
ar2,
na2,
no2,
on2,
or2,