9 letter words:
unpinning12,
7 letter words:
pinguin10,
pinning10,
punning10,
6 letter words:
pining9,
inning7,
5 letter words:
piing8,
unpin7,
4 letter words:
ping7,
pung7,
ginn5,
3 letter words:
gip6,
gup6,
pig6,
pug6,
nip5,
pin5,
piu5,
pun5,
gin4,
gnu4,
gun4,
inn3,
nun3,
uni3,
2 letter words:
pi4,
up4,
gi3,
gu3,
ug3,
in2,
nu2,
un2,