7 letter words:
fitness10,
infests10,
6 letter words:
feints9,
feists9,
finest9,
infest9,
insets6,
steins6,
5 letter words:
feint8,
feist8,
fests8,
fines8,
fists8,
neifs8,
seifs8,
sifts8,
inset5,
neist5,
nests5,
nites5,
senti5,
sines5,
sites5,
snits5,
stein5,
sties5,
tines5,
4 letter words:
efts7,
fens7,
fess7,
fest7,
fets7,
fine7,
fins7,
fist7,
fits7,
neif7,
seif7,
sift7,
ness4,
nest4,
nets4,
nite4,
nits4,
seis4,
sent4,
sets4,
sine4,
sins4,
site4,
sits4,
snit4,
tens4,
ties4,
tine4,
tins4,
3 letter words:
efs6,
eft6,
fen6,
fes6,
fet6,
fie6,
fin6,
fit6,
ifs6,
ens3,
ess3,
ins3,
its3,
net3,
nit3,
sei3,
sen3,
set3,
sin3,
sis3,
sit3,
ten3,
tie3,
tin3,
tis3,
2 letter words:
ef5,
fe5,
if5,
en2,
es2,
et2,
in2,
is2,
it2,
ne2,
si2,
ti2,