7 letter words:
catfish15,
fascist12,
6 letter words:
faiths12,
shafts12,
shifts12,
schist11,
stichs11,
5 letter words:
fitch13,
faith11,
hafts11,
shaft11,
shift11,
aitch10,
chais10,
chats10,
chias10,
chits10,
facts10,
fiscs10,
stich10,
tachs10,
fasts8,
fiats8,
fists8,
hists8,
saith8,
shist8,
shits8,
sifts8,
stash8,
casts7,
cists7,
scats7,
satis5,
4 letter words:
fash10,
fish10,
haft10,
cash9,
chai9,
chat9,
chia9,
chis9,
chit9,
fact9,
fisc9,
ichs9,
itch9,
tach9,
ahis7,
fast7,
fats7,
fiat7,
fist7,
fits7,
hast7,
hats7,
hiss7,
hist7,
hits7,
sash7,
shat7,
shit7,
sift7,
sith7,
this7,
acts6,
asci6,
cast6,
cats6,
cist6,
sacs6,
scat6,
sics6,
tics6,
aits4,
sati4,
sits4,
tass4,
3 letter words:
chi8,
hic8,
ich8,
aft6,
ahi6,
ahs6,
ash6,
fas6,
fat6,
fit6,
has6,
hat6,
his6,
hit6,
ifs6,
sha6,
act5,
cat5,
cis5,
sac5,
sic5,
tic5,
ais3,
ait3,
ass3,
its3,
sat3,
sis3,
sit3,
tas3,
tis3,
2 letter words:
ah5,
fa5,
ha5,
hi5,
if5,
sh5,
ai2,
as2,
at2,
is2,
it2,
si2,
ta2,
ti2,