9 letter words:
fiftieths18,
8 letter words:
fiftieth17,
7 letter words:
fifties13,
iffiest13,
stiffie13,
6 letter words:
fifths15,
fetish12,
thefts12,
theist9,
tithes9,
5 letter words:
fifth14,
fiefs11,
fifes11,
hefts11,
shift11,
stiff11,
teffs11,
theft11,
thief11,
tiffs11,
feist8,
heist8,
teths8,
tithe8,
titis5,
4 letter words:
effs10,
fehs10,
fief10,
fife10,
fish10,
heft10,
teff10,
tiff10,
efts7,
eths7,
fest7,
fets7,
fist7,
fits7,
hest7,
hets7,
hies7,
hist7,
hits7,
seif7,
shit7,
sift7,
sith7,
teth7,
this7,
sett4,
site4,
stet4,
test4,
tets4,
ties4,
titi4,
tits4,
3 letter words:
eff9,
feh9,
iff9,
efs6,
eft6,
eth6,
fes6,
fet6,
fie6,
fit6,
hes6,
het6,
hie6,
his6,
hit6,
ifs6,
she6,
the6,
its3,
sei3,
set3,
sit3,
tet3,
tie3,
tis3,
tit3,
2 letter words:
ef5,
eh5,
fe5,
he5,
hi5,
if5,
sh5,
es2,
et2,
is2,
it2,
si2,
ti2,