7 letter words:
unbegun10,
6 letter words:
nebbuk14,
begunk13,
bebung11,
5 letter words:
begun8,
4 letter words:
buke10,
bunk10,
knub10,
gunk9,
bubu8,
kune8,
neuk8,
nuke8,
bung7,
bunn6,
unbe6,
genu5,
3 letter words:
keb9,
keg8,
bub7,
ebb7,
euk7,
ken7,
kue7,
nek7,
uke7,
beg6,
bug6,
gub6,
ben5,
bun5,
neb5,
nub5,
eng4,
gen4,
gnu4,
gue4,
gun4,
neg4,
nun3,
2 letter words:
be4,
gu3,
ug3,
en2,
ne2,
nu2,
un2,