7 letter words:
butyrin12,
5 letter words:
briny10,
runty8,
unity8,
bruin7,
bruit7,
brunt7,
burin7,
burnt7,
rutin5,
4 letter words:
bury9,
inby9,
ruby9,
tiny7,
tyin7,
yurt7,
bint6,
brin6,
brit6,
brut6,
bunt6,
burn6,
ruin4,
runt4,
turn4,
unit4,
3 letter words:
buy8,
try6,
yin6,
bin5,
bit5,
bun5,
bur5,
but5,
nib5,
nub5,
rib5,
rub5,
tub5,
urb5,
nit3,
nut3,
rin3,
run3,
rut3,
tin3,
tui3,
tun3,
urn3,
2 letter words:
by7,
bi4,
in2,
it2,
nu2,
ti2,
un2,
ut2,
