11 letter words:
pipefitting19,
9 letter words:
pipetting14,
7 letter words:
tipping12,
fetting11,
fitting11,
tifting11,
petting10,
pitting10,
pentiti9,
6 letter words:
pigpen11,
piping11,
feting10,
tippet10,
finite9,
pieing9,
pinite8,
pitten8,
tiepin8,
gittin7,
ignite7,
tieing7,
5 letter words:
feign9,
pipet9,
pipit9,
feint8,
fient8,
fitte8,
genip8,
piing8,
inept7,
nepit7,
petit7,
petti7,
genii6,
tinge6,
ettin5,
4 letter words:
gift8,
pipe8,
pipi8,
feni7,
fent7,
fett7,
fine7,
fini7,
fitt7,
neif7,
nief7,
nife7,
ping7,
tift7,
pein6,
peni6,
pent6,
piet6,
pine6,
pint6,
tipi6,
tipt6,
geit5,
gent5,
gien5,
gite5,
tige5,
ting5,
inti4,
nett4,
nite4,
tent4,
tine4,
tint4,
tite4,
titi4,
3 letter words:
feg7,
fig7,
gif7,
pep7,
pip7,
eft6,
fen6,
fet6,
fie6,
fin6,
fit6,
gip6,
nef6,
peg6,
pig6,
tef6,
nep5,
nip5,
pen5,
pet5,
pie5,
pin5,
pit5,
tip5,
eng4,
gen4,
get4,
gie4,
gin4,
git4,
neg4,
teg4,
tig4,
net3,
nie3,
nit3,
ten3,
tet3,
tie3,
tin3,
tit3,
2 letter words:
ef5,
fe5,
if5,
pe4,
pi4,
gi3,
en2,
et2,
in2,
it2,
ne2,
te2,
ti2,