5 letter words:
fixit15,
thief11,
4 letter words:
fixt14,
exit11,
heft10,
thio7,
3 letter words:
fix13,
fox13,
hex13,
feh9,
foh9,
eft6,
eth6,
fet6,
fie6,
fit6,
foe6,
het6,
hie6,
hit6,
hoe6,
hot6,
oft6,
the6,
tho6,
tie3,
toe3,
2 letter words:
ex9,
ox9,
xi9,
ef5,
eh5,
fe5,
he5,
hi5,
ho5,
if5,
of5,
oh5,
et2,
it2,
oe2,
oi2,
ti2,
to2,