8 letter words:
spinifex20,
7 letter words:
infixes17,
6 letter words:
pixies15,
nixies13,
5 letter words:
fixes15,
infix15,
pixes14,
pixie14,
nixes12,
nixie12,
fines8,
finis8,
neifs8,
peins7,
penis7,
pines7,
snipe7,
spine7,
nisei5,
4 letter words:
nixe11,
fens7,
fine7,
fins7,
neif7,
seif7,
nips6,
pein6,
pens6,
pies6,
pine6,
pins6,
sipe6,
snip6,
spin6,
nisi4,
sine4,
3 letter words:
fix13,
pix12,
nix10,
sex10,
six10,
xis10,
efs6,
fen6,
fes6,
fie6,
fin6,
ifs6,
nip5,
pen5,
pes5,
pie5,
pin5,
pis5,
psi5,
sip5,
ens3,
ins3,
sei3,
sen3,
sin3,
2 letter words:
ex9,
xi9,
ef5,
fe5,
if5,
pe4,
pi4,
en2,
es2,
in2,
is2,
ne2,
si2,
