7 letter words:
spinoff15,
5 letter words:
spiff13,
sniff11,
finos8,
foins8,
infos8,
opsin7,
pions7,
4 letter words:
offs10,
fops9,
fino7,
fins7,
foin7,
fons7,
info7,
nips6,
pins6,
pion6,
piso6,
pois6,
pons6,
snip6,
spin6,
ions4,
3 letter words:
iff9,
off9,
fop8,
fin6,
fon6,
ifs6,
nip5,
ops5,
pin5,
pis5,
poi5,
psi5,
sip5,
sop5,
ins3,
ion3,
nos3,
ons3,
sin3,
son3,
2 letter words:
if5,
of5,
op4,
pi4,
in2,
is2,
no2,
oi2,
on2,
os2,
si2,
so2,
