7 letter words:
nulling8,
6 letter words:
ulling7,
5 letter words:
lungi6,
4 letter words:
gill5,
ginn5,
gull5,
iglu5,
ling5,
lung5,
linn4,
nill4,
null4,
3 letter words:
gin4,
gnu4,
gul4,
gun4,
lig4,
lug4,
ill3,
inn3,
lin3,
nil3,
nun3,
uni3,
2 letter words:
gi3,
gu3,
ug3,
in2,
li2,
nu2,
un2,