6 letter words:
soffit12,
5 letter words:
staff11,
stiff11,
tiffs11,
toffs11,
fasti8,
fatso8,
fiats8,
foist8,
softa8,
iotas5,
ostia5,
stoai5,
4 letter words:
offs10,
tiff10,
toff10,
fast7,
fats7,
fiat7,
fist7,
fits7,
oafs7,
saft7,
sift7,
sofa7,
soft7,
aits4,
iota4,
itas4,
oast4,
oats4,
sati4,
stoa4,
tais4,
taos4,
tosa4,
3 letter words:
aff9,
iff9,
off9,
aft6,
fas6,
fat6,
fit6,
ifs6,
oaf6,
oft6,
sif6,
ais3,
ait3,
ios3,
iso3,
ita3,
its3,
oat3,
sai3,
sat3,
sit3,
sot3,
tai3,
tao3,
tas3,
tis3,
2 letter words:
fa5,
if5,
of5,
ai2,
as2,
at2,
io2,
is2,
it2,
oi2,
os2,
si2,
so2,
st2,
ta2,
ti2,
to2,