5 letter words:
fiats8,
maist7,
tamis7,
4 letter words:
fast7,
fats7,
fiat7,
fist7,
fits7,
sift7,
aims6,
amis6,
mast6,
mats6,
mist6,
sima6,
smit6,
tams6,
aits4,
sati4,
3 letter words:
aft6,
fas6,
fat6,
fit6,
ifs6,
aim5,
ami5,
ism5,
mas5,
mat5,
mis5,
sim5,
tam5,
ais3,
ait3,
its3,
sat3,
sit3,
tas3,
tis3,
2 letter words:
fa5,
if5,
am4,
ma4,
mi4,
ai2,
as2,
at2,
is2,
it2,
si2,
ta2,
ti2,