6 letter words:
bourns8,
suborn8,
5 letter words:
bonus7,
bosun7,
bourn7,
burns7,
4 letter words:
born6,
bros6,
buns6,
burn6,
burs6,
nobs6,
nubs6,
orbs6,
robs6,
rubs6,
snob6,
snub6,
sorb6,
urbs6,
nous4,
onus4,
ours4,
runs4,
sorn4,
sour4,
urns4,
3 letter words:
bos5,
bro5,
bun5,
bur5,
bus5,
nob5,
nub5,
orb5,
rob5,
rub5,
sob5,
sub5,
urb5,
nor3,
nos3,
nus3,
ons3,
ors3,
our3,
run3,
son3,
sou3,
sun3,
uns3,
urn3,
2 letter words:
bo4,
no2,
nu2,
on2,
or2,
os2,
so2,
un2,
us2,
