7 letter words:
pigpens12,
pipings12,
sipping12,
peising10,
6 letter words:
pigpen11,
piping11,
pepsin10,
genips9,
pieing9,
siping9,
5 letter words:
pipes9,
genip8,
piing8,
pings8,
peins7,
penis7,
pines7,
snipe7,
spine7,
genii6,
segni6,
sengi6,
singe6,
nisei5,
4 letter words:
peps8,
pipe8,
pips8,
gips7,
pegs7,
pigs7,
ping7,
nips6,
pein6,
pens6,
pies6,
pine6,
pins6,
sipe6,
snip6,
spin6,
egis5,
engs5,
gens5,
gien5,
gies5,
gins5,
negs5,
sign5,
sing5,
nisi4,
sine4,
3 letter words:
pep7,
pip7,
gip6,
peg6,
pig6,
nip5,
pen5,
pes5,
pie5,
pin5,
pis5,
psi5,
sip5,
eng4,
gen4,
gie4,
gin4,
neg4,
seg4,
ens3,
ins3,
sei3,
sen3,
sin3,
2 letter words:
pe4,
pi4,
en2,
es2,
in2,
is2,
ne2,
si2,