9 letter words:
inputting12,
7 letter words:
pitting10,
punting10,
putting10,
nutting8,
tinting8,
uniting8,
6 letter words:
pignut9,
pining9,
gittin7,
tining7,
tuning7,
intuit6,
5 letter words:
piing8,
input7,
putti7,
unpin7,
4 letter words:
ping7,
pung7,
pint6,
ptui6,
punt6,
putt6,
tipi6,
ting5,
tung5,
inti4,
tint4,
titi4,
unit4,
3 letter words:
gip6,
pig6,
pug6,
nip5,
pin5,
pit5,
piu5,
pun5,
put5,
tip5,
tup5,
gin4,
git4,
gnu4,
gun4,
gut4,
tug4,
inn3,
nit3,
nun3,
nut3,
tin3,
tit3,
tui3,
tun3,
tut3,
2 letter words:
pi4,
up4,
in2,
it2,
nu2,
ti2,
un2,
ut2,