8 letter words:
fixating19,
7 letter words:
taxiing15,
6 letter words:
faxing17,
fixing17,
taxing14,
fating10,
5 letter words:
fixit15,
infix15,
axing13,
fagin9,
faint8,
giant6,
4 letter words:
fixt14,
ixia11,
taxi11,
fang8,
gift8,
fain7,
fiat7,
naif7,
agin5,
gain5,
gait5,
gnat5,
tang5,
ting5,
anti4,
inia4,
inti4,
tain4,
3 letter words:
fax13,
fix13,
nix10,
tax10,
fag7,
fig7,
aft6,
fan6,
fat6,
fin6,
fit6,
gan4,
gat4,
gin4,
git4,
nag4,
tag4,
ain3,
ait3,
ani3,
ant3,
nit3,
tan3,
tin3,
2 letter words:
ax9,
xi9,
fa5,
if5,
ag3,
ai2,
an2,
at2,
in2,
it2,
na2,
ta2,
ti2,