9 letter words:
bagpiping17,
7 letter words:
gapping13,
gipping13,
6 letter words:
piping11,
biggin10,
gaping10,
gibing10,
paging10,
piggin10,
5 letter words:
aping8,
piing8,
aging7,
4 letter words:
bang7,
pang7,
ping7,
bani6,
gang6,
giga6,
nipa6,
pain6,
pian6,
pina6,
agin5,
gain5,
inia4,
3 letter words:
app7,
bap7,
pap7,
pip7,
bag6,
big6,
gab6,
gap6,
gib6,
gip6,
pig6,
ban5,
bin5,
gag5,
gig5,
igg5,
nab5,
nap5,
nib5,
nip5,
pan5,
pia5,
pin5,
gan4,
gin4,
nag4,
ain3,
ani3,
2 letter words:
ab4,
ba4,
bi4,
pa4,
pi4,
ag3,
ai2,
an2,
in2,
na2,