7 letter words:
bugging12,
6 letter words:
buggin10,
ugging9,
4 letter words:
bigg8,
bing7,
bung7,
ging6,
gung6,
3 letter words:
big6,
bug6,
gib6,
gub6,
bin5,
bun5,
gig5,
igg5,
nib5,
nub5,
gin4,
gnu4,
gun4,
uni3,
2 letter words:
bi4,
gi3,
gu3,
ug3,
in2,
nu2,
un2,