5 letter words:
tuktu9,
4 letter words:
puku10,
punk10,
gunk9,
knut8,
kutu8,
pung7,
punt6,
putt6,
tung5,
tutu4,
3 letter words:
gup6,
pug6,
pun5,
put5,
tup5,
gnu4,
gun4,
gut4,
tug4,
nut3,
tun3,
tut3,
utu3,
2 letter words:
up4,
gu3,
ug3,
nu2,
un2,
ut2,