7 letter words:
toffish16,
6 letter words:
fifths15,
offish15,
soffit12,
5 letter words:
fifth14,
shift11,
stiff11,
tiffs11,
toffs11,
foist8,
hoist8,
4 letter words:
fish10,
fohs10,
offs10,
tiff10,
toff10,
fist7,
fits7,
hist7,
hits7,
host7,
hots7,
shit7,
shot7,
sift7,
sith7,
soft7,
soth7,
thio7,
this7,
tosh7,
3 letter words:
foh9,
iff9,
off9,
fit6,
his6,
hit6,
hoi6,
hos6,
hot6,
ifs6,
ish6,
oft6,
ohs6,
sif6,
soh6,
tho6,
ios3,
iso3,
its3,
sit3,
sot3,
tis3,
2 letter words:
hi5,
ho5,
if5,
of5,
oh5,
sh5,
io2,
is2,
it2,
oi2,
os2,
si2,
so2,
st2,
ti2,
to2,
