7 letter words:
thirsts10,
thrists10,
6 letter words:
shirts9,
thirst9,
thrist9,
5 letter words:
hists8,
shirs8,
shirt8,
shist8,
shits8,
shris8,
ritts5,
stirs5,
trist5,
4 letter words:
hiss7,
hist7,
hits7,
shir7,
shit7,
shri7,
sith7,
thir7,
this7,
rits4,
ritt4,
sirs4,
sist4,
sits4,
sris4,
stir4,
tits4,
3 letter words:
his6,
hit6,
ish6,
its3,
rit3,
sir3,
sis3,
sit3,
sri3,
tis3,
tit3,
2 letter words:
hi5,
sh5,
is2,
it2,
si2,
st2,
ti2,