5 letter words:
begum10,
begun8,
4 letter words:
mugg8,
numb8,
bung7,
geum7,
menu6,
neum6,
unbe6,
genu5,
3 letter words:
bum7,
beg6,
bug6,
gem6,
gum6,
meg6,
mug6,
ben5,
bun5,
egg5,
emu5,
men5,
mun5,
neb5,
nub5,
eng4,
gen4,
gnu4,
gun4,
neg4,
2 letter words:
be4,
em4,
me4,
mu4,
um4,
en2,
ne2,
nu2,
un2,