7 letter words:
burning10,
5 letter words:
bring8,
brung8,
bruin7,
burin7,
ruing6,
unrig6,
inrun5,
inurn5,
4 letter words:
brig7,
bung7,
burg7,
grub7,
brin6,
bunn6,
burn6,
girn5,
grin5,
ring5,
rung5,
ruin4,
3 letter words:
big6,
bug6,
gib6,
bin5,
bun5,
bur5,
nib5,
nub5,
rib5,
rub5,
urb5,
gin4,
gnu4,
gun4,
rig4,
rug4,
inn3,
nun3,
rin3,
run3,
urn3,
2 letter words:
bi4,
in2,
nu2,
un2,
