12 letter words:
spiffinesses20,
10 letter words:
spiffiness18,
iffinesses16,
8 letter words:
spiffies16,
iffiness14,
finesses11,
speisses10,
7 letter words:
finesse10,
finises10,
penises9,
speises9,
spenses9,
seisins7,
senseis7,
sissies7,
6 letter words:
spiffs14,
sniffs12,
fesses9,
espies8,
peises8,
penies8,
pinies8,
pisses8,
sepses8,
sepsis8,
snipes8,
speise8,
speiss8,
spense8,
spines8,
isseis6,
nesses6,
niseis6,
nisses6,
seines6,
seises6,
seisin6,
sensei6,
senses6,
sensis6,
sesses6,
sisses6,
5 letter words:
spiff13,
fiefs11,
fifes11,
niffs11,
sniff11,
spifs10,
feens8,
fenis8,
fesse8,
fines8,
finis8,
neifs8,
niefs8,
nifes8,
seifs8,
neeps7,
peens7,
peins7,
peise7,
penes7,
penie7,
penis7,
pines7,
pises7,
seeps7,
sipes7,
snipe7,
snips7,
spies7,
spine7,
spins7,
esnes5,
esses5,
issei5,
nisei5,
nisse5,
seine5,
seise5,
sense5,
sensi5,
siens5,
sines5,
sises5,
snees5,
snies5,
4 letter words:
effs10,
fief10,
fife10,
fifi10,
niff10,
spif9,
feen7,
fees7,
feis7,
feni7,
fens7,
fess7,
fine7,
fini7,
fins7,
nefs7,
neif7,
nief7,
nife7,
seif7,
neep6,
neps6,
nips6,
peen6,
pees6,
pein6,
pene6,
peni6,
pens6,
pies6,
pine6,
pins6,
pise6,
piss6,
psis6,
seep6,
seps6,
sipe6,
sips6,
snip6,
spie6,
spin6,
eine4,
enes4,
eses4,
esne4,
esse4,
ness4,
nies4,
nisi4,
seen4,
sees4,
seis4,
sene4,
sens4,
sese4,
sess4,
sien4,
sies4,
sine4,
sins4,
siss4,
snee4,
3 letter words:
eff9,
iff9,
efs6,
fee6,
fen6,
fes6,
fie6,
fin6,
ifs6,
nef6,
sif6,
nep5,
nip5,
pee5,
pen5,
pes5,
pie5,
pin5,
pis5,
psi5,
sip5,
een3,
ene3,
ens3,
ess3,
ins3,
nee3,
nie3,
nis3,
see3,
sei3,
sen3,
sin3,
sis3,
2 letter words:
ef5,
fe5,
if5,
pe4,
pi4,
ee2,
en2,
es2,
in2,
is2,
ne2,
si2,
