9 letter words:
finfishes18,
8 letter words:
sniffish17,
finishes14,
iffiness14,
7 letter words:
finfish16,
finises10,
6 letter words:
finish12,
fishes12,
sniffs12,
shines9,
niseis6,
seisin6,
5 letter words:
fiefs11,
fifes11,
sniff11,
fines8,
finis8,
neifs8,
seifs8,
shies8,
shine8,
shins8,
sinhs8,
issei5,
nisei5,
sines5,
4 letter words:
effs10,
fehs10,
fief10,
fife10,
fish10,
fens7,
fess7,
fine7,
fins7,
hens7,
hies7,
hins7,
hisn7,
hiss7,
neif7,
seif7,
shes7,
shin7,
sinh7,
ness4,
nisi4,
seis4,
sine4,
sins4,
3 letter words:
eff9,
feh9,
iff9,
efs6,
fen6,
fes6,
fie6,
fin6,
hen6,
hes6,
hie6,
hin6,
his6,
ifs6,
she6,
ens3,
ess3,
ins3,
sei3,
sen3,
sin3,
sis3,
2 letter words:
ef5,
eh5,
fe5,
he5,
hi5,
if5,
sh5,
en2,
es2,
in2,
is2,
ne2,
si2,