8 letter words:
spiffing17,
6 letter words:
fifing13,
siping9,
5 letter words:
spiff13,
niffs11,
sniff11,
finis8,
piing8,
pings8,
4 letter words:
fifi10,
niff10,
spif9,
figs8,
fini7,
fins7,
gips7,
pigs7,
ping7,
nips6,
pins6,
snip6,
spin6,
gins5,
sign5,
sing5,
snig5,
nisi4,
3 letter words:
iff9,
fig7,
gif7,
fin6,
gip6,
ifs6,
pig6,
sif6,
nip5,
pin5,
pis5,
psi5,
sip5,
gin4,
gis4,
ins3,
nis3,
sin3,
2 letter words:
if5,
pi4,
gi3,
in2,
is2,
si2,
